bash-completion/bash_completion

#   bash_completion - some programmable completion functions for bash 2.05a
#
#   $Id: bash_completion,v 1.166 2002/02/28 23:23:14 ianmacd Exp $
#
#   Copyright (C) Ian Macdonald <ian@caliban.org>
#
#   This program is free software; you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation; either version 2, or (at your option)
#   any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program; if not, write to the Free Software Foundation,
#   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

# RELEASE: 20020227

[ -n "$DEBUG" ] && set -v || set +v

# Alter the following to reflect the location of this file
#
[ -z "$BASH_COMPLETION" ] && declare -r BASH_COMPLETION=/etc/bash_completion

# Set a couple of useful vars
#
OS=$( uname -s )
RELEASE=$( uname -r )

# Turn on extended globbing and programmable completion
shopt -s extglob progcomp

# A lot of the following one-liners were taken directly from the
# completion examples provided with the bash 2.04 source distribution

# Make directory commands see only directories
complete -d pushd

# the following section lists completions that are redefined later
# START exclude -- do NOT remove this line
complete -f -X '!*.bz2' bunzip2 bzcat bzcmp bzdiff bzegrep bzfgrep bzgrep
complete -f -X '!*.@(zip|ZIP|jar|JAR|exe|EXE|pk3)' unzip
complete -f -X '*.Z' compress znew
complete -f -X '!*.@(Z|gz|tgz|Gz)' gunzip zcmp zdiff zcat zegrep zfgrep zgrep zless zmore
complete -f -X '!*.Z' uncompress
complete -f -X '!*.@(gif|jp?(e)g|tif?(f)|png|p[bgp]m|bmp|xpm|GIF|JPG|JP?(E)G|TIF?(F)|PNG|P[BGP]M|BMP|XPM)' ee xv qiv display
complete -f -X '!*.@(?(e)ps|?(E)PS|?(e)ps.gz|pdf|PDF)' gv ggv
complete -f -X '!*.@(dvi|DVI)?(.@(gz|Z|bz2))' xdvi
complete -f -X '!*.@(dvi|DVI)' dvips dviselect dvitype
complete -f -X '!*.@(pdf|PDF)' acroread xpdf
complete -f -X '!*.texi*' makeinfo texi2dvi texi2html
complete -f -X '!*.@(tex|TEX)' tex latex slitex jadetex pdfjadetex pdftex pdflatex
complete -f -X '!*.@(mp3|MP3)' mpg123
complete -f -X '!*.@(mpg|mpeg|avi|asf|vob|bin|vcd|ps|pes|fli|viv|rm|ram|yuv|mov|wmv)' mplayer
complete -f -X '!*.@(avi|asf)' aviplay
complete -f -X '!*.@(rm|ram)' realplay
complete -f -X '!*.@(mpg|mpeg|avi|mov)' xanim
complete -f -X '!*.@(ogg|OGG)' ogg123
complete -f -X '!*.@(mp3|MP3|ogg|OGG|pls)' xmms gqmpeg freeamp
complete -f -X '!*.fig' xfig
# FINISH exclude -- do not remove this line

# user commands see only users
complete -u finger su usermod userdel passwd

# group commands see only groups
complete -g groupmod groupdel

# bg completes with stopped jobs
complete -A stopped -P '%' bg

# other job commands
complete -j -P '%' fg jobs disown

# export and others complete with shell variables
complete -v readonly unset

# set completes with set options
complete -A setopt set

# shopt completes with shopt options
complete -A shopt shopt

# helptopics
complete -A helptopic help

# unalias completes with aliases
complete -a unalias

# bind completes with readline bindings (make this more intelligent)
complete -A binding bind

# type completes with commands
complete -c command type

# Now we get to the meat of the file, the functions themselves. Some
# of these are works in progress. Most assume GNU versions of the
# tools in question and may require modifications for use on vanilla
# UNIX systems.
#
# A couple of functions may have non-portable, Linux specific code in
# them, but this will be noted where applicable

# This function is handy for checking whether we have certain programs
# on the system. No need for bulky functions in memory if we don't.
#
have()
{
	unset -v have
	type $1 &> /dev/null
	[ $? -eq 0 ] && have="yes"
}

# GNU chown(1) completion.
#
_chown()
{
	local cur prev user group i

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	# do not attempt completion if we're specifying an option
	[[ "$cur" == -* ]] && return 0

	# first parameter on line or first since an option?
	if [ $COMP_CWORD -eq 1 ] || [[ "$prev" == -* ]]; then
		if [[ "$cur" == [a-zA-Z]*.* ]]; then
			user=${cur%.*}
			group=${cur#*.}
			COMPREPLY=( $( compgen -g -- $group ) )
			for (( i=0; i < ${#COMPREPLY[@]}; i++ )); do
				COMPREPLY[i]=$user.${COMPREPLY[i]}
			done
		else
			COMPREPLY=( $( compgen -S '.' -u $cur ) )
		fi
	fi

	return 0
}
complete -F _chown -o default chown

# chgrp(1) completion
#
_chgrp()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	# do not attempt completion if we're specifying an option
	[[ "$cur" == -* ]] && return 0

	# first parameter on line or first since an option?
	if [ $COMP_CWORD -eq 1 ] || [[ "$prev" == -* ]]; then
		_expand || return 0
		COMPREPLY=( $( compgen -g $cur ) )
	fi

	return 0
}
complete -F _chgrp -o default chgrp

# umount(8) completion. This relies on the mount point being the third
# space-delimited field in the output of mount(8)
#
_umount()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	# could rewrite the cut | grep to be a sed command, but this is
	# clearer and doesn't result in much overhead
	COMPREPLY=( $( mount | cut -d' ' -f 3 | grep ^$cur ) )

	return 0
}
complete -F _umount -o filenames umount

# mount(8) completion. This will pull a list of possible mounts out of
# /etc/fstab, unless the word being completed contains a ':', which
# would indicate the specification of an NFS server. In that case, we
# query the server for a list of all available exports and complete on
# that instead.
#
_mount()

{       local cur i sm

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	for i in {,/usr}/sbin/showmount; do [ -x $i ] && sm=$i && break; done

	if [ -n "$sm" ] && [[ "$cur" == *:* ]]; then
		COMPREPLY=( $( $sm -e --no-headers ${cur%%:*} | \
			       grep ^${cur#*:} | awk '{print $1}' ) )
	else
		COMPREPLY=( $( awk '{if ($2 ~ /\//) print $2}' /etc/fstab | \
			       grep ^$cur ) )
	fi

	return 0
}
complete -F _mount -o default mount

# Linux rmmod(1) completion. This completes on a list of all currently
# installed kernel modules.
#
[ $OS = Linux ] &&
_rmmod()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	COMPREPLY=( $( /sbin/lsmod | \
		       awk '{if (NR != 1 && $1 ~ /^'$cur'/) print $1}' ) )
	return 0
}
[ $OS = Linux ] && complete -F _rmmod rmmod

# Linux insmod(8) & modprobe(8) completion. This completes on a list of all
# available modules for the version of the kernel currently running.
#
[ $OS = Linux ] &&
_insmod()
{
	local cur prev modpath

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}
	modpath=/lib/modules/`uname -r`

	# behave like lsmod for modprobe -r
	if [ $1 = "modprobe" ] &&
	   [ "${COMP_WORDS[1]}" = "-r" ]; then
		COMPREPLY=( $( /sbin/lsmod | \
				awk '{if (NR != 1 && $1 ~ /^'$cur'/) print $1}' ) )
		return 0
	fi

	# do filename completion if we're giving a path to a module
	if [[ "$cur" == /* ]]; then
		_filedir
		return 0
	fi

	if [ $COMP_CWORD -gt 1 ]; then
		# do module parameter completion
		COMPREPLY=( $( /sbin/modinfo -p ${COMP_WORDS[1]} 2>/dev/null | \
		       awk '{if ($1 ~ /^'$cur'/) print $1}' ) )
	elif [ -r $modpath -a -x $modpath ]; then
		# do module name completion
		COMPREPLY=( $( \ls -R $modpath | \
				sed -ne 's/^\('$cur'.*\)\.o$/\1/p') )
	else 
		_filedir
	fi

	return 0
}
[ $OS = Linux ] && complete -F _insmod -o filenames insmod modprobe

# man(1) completion.  This is Linux specific, in that 'man <section> <page>'
# is the expected syntax. This allows one to do something like
# 'man 3 str<tab>' to obtain a list of all string handling syscalls on
# the system.
#
[ $OS = Linux ] &&
_man()
{
	local cur prev sect manpath

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	_expand || return 0

	# default completion if parameter contains /
	if [[ "$cur" == */* ]]; then
		_filedir
		return 0
	fi

	manpath=$( man --path )
	if [ -z "$manpath" ]; then
		COMPREPLY=( $( compgen -c -- $cur ) )
		return 0
	fi

	# determine manual section to search
	[[ "$prev" == [0-9ln] ]] && sect=$prev || sect='?'

	manpath=$manpath:
	if [ -n "$cur" ]; then
		manpath="${manpath//://man$sect/$cur* }"
	else
		manpath="${manpath//://man$sect/ }"
	fi
		
	# redirect stderr for when path doesn't exist
	COMPREPLY=( $( eval ls "$manpath" 2>/dev/null ) )
	# weed out directory path names and paths to man pages
	COMPREPLY=( ${COMPREPLY[@]##*/?(:)} )
	# strip suffix from man pages
	COMPREPLY=( ${COMPREPLY[@]%.@(gz|bz2)} )
	COMPREPLY=( ${COMPREPLY[@]%.*} )

	if [[ "$prev" != [0-9ln] ]]; then
		COMPREPLY=( ${COMPREPLY[@]} $( compgen -d -- $cur ) \
			    $( compgen -f -X '!*.[0-9ln]' -- $cur ) )
	fi

	return 0
}
[ $OS = Linux ] && complete -F _man -o filenames man

_signals()
{
	local i

	# standard signal completion is rather braindead, so we need
	# to hack around to get what we want here, which is to
	# complete on a dash, followed by the signal name minus
	# the SIG prefix
	COMPREPLY=( $( compgen -A signal SIG${cur#-} ))
	for (( i=0; i < ${#COMPREPLY[@]}; i++ )); do
		COMPREPLY[i]=-${COMPREPLY[i]#SIG}
	done
}

# kill(1) completion
#
_kill()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

        if [ $COMP_CWORD -eq 1 ] && [[ "$cur" == -* ]]; then
		# return list of available signals
		_signals
	else
		# return list of available PIDs
		COMPREPLY=( $( ps ahx | awk '{print $1}' | grep ^$cur ) )
	fi
}
complete -F _kill kill

# Linux killall(1) completion. This wouldn't be much use on, say,
# Solaris, where killall does exactly that: kills ALL processes.
#
# This could be improved. For example, it currently doesn't take
# command line options into account
#
[ $OS = Linux ] &&
_killall()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	if [ $COMP_CWORD -eq 1 ] && [[ "$cur" == -* ]]; then
		_signals
	else
		# get a list of processes (the sub() in the awk takes care
		# of getting the basename of the process, the first sed
		# evaluation takes care of swapped out processes, and the
		# second takes care of getting the basename of the process)
		COMPREPLY=( $( ps ahx | sed -e 's#[]\[()]##g' | \
		   awk '{p=$5;sub("^.*/","",p);if (p ~ /^'$cur'/) print $5}' | \
		   sed  -e 's#^.*/##' ) )
	fi

	return 0
}
[ $OS = Linux ] && complete -F _killall killall

# GNU find(1) completion. This makes heavy use of ksh style extended
# globs and contains Linux specific code for completing the parameter
# to the -fstype option.
#
_find()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case "$prev" in
	-@(max|min)depth)
		COMPREPLY=( $( compgen -W '0 1 2 3 4 5 6 7 8 9' -- $cur ) )
		return 0
		;;
	-?(a)newer|-fls|-fprint?(0|f)|-?(i)?(l)name)
		_filedir
		return 0
		;;
	-fstype)
		# this is highly non-portable
		COMPREPLY=( $( cut -d$'\t' -f 2 /proc/filesystems | grep ^$cur ) )
		return 0
		;;
	-gid)
		COMPREPLY=( $( awk 'BEGIN {FS=":"} \
				{if ($3 ~ /^'$ncur'/) print $3}' /etc/group ) )
		return 0
		;;
	-group)
		COMPREPLY=( $( compgen -g -- $cur ) )
		return 0
		;;
	-?(x)type)
		COMPREPLY=( $( compgen -W 'b c d p f l s' -- $cur ) )
		return 0
		;;
	-uid)
		COMPREPLY=( $( awk 'BEGIN {FS=":"} \
				{if ($3 ~ /^'$ncur'/) print $3}' /etc/passwd ) )
		return 0
		;;
	-user)
		COMPREPLY=( $( compgen -u -- $cur ) )
		return 0
		;;
	-[acm]min|-[acm]time|-?(i)?(l)name|-inum|-?(i)path|-?(i)regex| \
	-links|-perm|-size|-used|-exec|-ok|-printf)
		# do nothing, just wait for a parameter to be given
		return 0
		;;
	esac

	_expand || return 0

	# handle case where first parameter is not a dash option
	if [ $COMP_CWORD -eq 1 ] && [[ "$cur" != -* ]]; then
		_filedir -d
		return 0
	fi

	# complete using basic options
	COMPREPLY=( $( compgen -W '-daystart -depth -follow -help -maxdepth \
			-mindepth -mount -noleaf -version -xdev -amin -anewer \
			-atime -cmin -cnewer -ctime -empty -false -fstype \
			-gid -group -ilname -iname -inum -ipath -iregex \
			-links -lname -mmin -mtime -name -newer -nouser \
			-nogroup -perm -regex -size -true -type -uid -used \
			-user -xtype -exec -fls -fprint -fprint0 -fprintf -ok \
			-print -print0 -printf -prune -ls' -- $cur ) )

	# this removes any options from the list of completions that have
	# already been specified somewhere on the command line.
	COMPREPLY=( $( echo "${COMP_WORDS[@]}" | \
		       (while read -d ' ' i; do
			    [ "$i" == "" ] && continue
			    # flatten array with spaces on either side,
			    # otherwise we cannot grep on word boundaries of
			    # first and last word
			    COMPREPLY=" ${COMPREPLY[@]} "
			    # remove word from list of completions
			    COMPREPLY=( ${COMPREPLY/ ${i%% *} / } )
			done
			echo ${COMPREPLY[@]})
		  ) )
	
	return 0
}
complete -F _find -o filenames find

# Linux ifconfig(8) completion
#
[ $OS = Linux ] &&
_ifconfig()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	case "${COMP_WORDS[1]}" in
	-|*[0-9]*)
		COMPREPLY=( $( compgen -W '-a up down arp promisc allmulti \
					   metric mtu dstaddr netmask add del \
					   tunnel irq io_addr mem_start media \
					   broadcast pointopoint hw multicast \
					   address txqueuelen' $cur ))
		COMPREPLY=( $( echo " ${COMP_WORDS[@]}" | \
			       (while read -d ' ' i; do
				   [ "$i" == "" ] && continue
				   # flatten array with spaces on either side,
				   # otherwise we cannot grep on word
				   # boundaries of first and last word
				   COMPREPLY=" ${COMPREPLY[@]} "
				   # remove word from list of completions
				   COMPREPLY=( ${COMPREPLY/ $i / } )
				done
				echo ${COMPREPLY[@]})
			  ) )
		return 0
		;;
	esac

	COMPREPLY=( $( /sbin/ifconfig -a | \
		       sed -ne 's/^\('$cur'[^ ]*\).*$/\1/p' ))
}
[ $OS = Linux ] && complete -F _ifconfig ifconfig

# RedHat & Debian Linux if{up,down} completion
#
[ $OS = Linux ] && ( have ifup || have ifdown ) &&
_ifupdown()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	if [ $COMP_CWORD -eq 1 ]; then
		if [ -f /etc/debian_version ]; then
			# Debian system
			COMPREPLY=( $( sed -ne 's/^iface \([^ ]\+\).*$/\1/p' /etc/network/interfaces ) )
		else
			# Assume Red Hat
			COMPREPLY=( $( \ls /etc/sysconfig/network-scripts/ifcfg-* | sed -ne 's/.*ifcfg-\('$cur'.*\)/\1/p' ) )
		fi
       fi

       return 0
}
[ $OS = Linux ] && have ifup && complete -F _ifupdown ifup ifdown

# Linux ipsec(8) completion (for FreeS/WAN). Basic.
#
[ $OS = Linux ] && have ipsec &&
_ipsec()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	
	if [ $COMP_CWORD -eq 1 ]; then
		COMPREPLY=( $( compgen -W 'auto barf eroute klipsdebug look \
					   manual pluto ranbits rsasigkey \
					   setup showdefaults showhostkey spi \
					   spigrp tncfg whack' $cur ) )
		return 0
	fi

	case ${COMP_WORDS[1]} in
	auto)
		COMPREPLY=( $( compgen -W '--asynchronous --up --add --delete \
					   --replace --down --route --unroute \
					   --ready --status --rereadsecrets' \
					$cur ) )
		;;
	manual)
		COMPREPLY=( $( compgen -W '--up --down --route --unroute \
					   --union' $cur ) )
		;;
	ranbits)
		COMPREPLY=( $( compgen -W '--quick --continuous --bytes' $cur ) )
		;;
	setup)
		COMPREPLY=( $( compgen -W '--start --stop --restart' $cur ) )
		;;

	*)
		;;
	esac

	return 0
}
[ $OS = Linux ] && [ "$have" ] && complete -F _ipsec ipsec

# cvs(1) completion
#
have cvs &&
_cvs()
{
	set_prefix()
	{
		[ "$prefix" = "" ] || prefix=${cur%/*}/
		[ -r ${prefix}CVS/Entries ] || prefix=""
	}

	get_entries()
	{

		entries=( $( cut -d/ -f2 -s ${prefix}CVS/Entries | \
			     grep "^$cur" ) )
	}

	get_modules()
	{

		COMPREPLY=( $( \ls -d $cvsroot/!(CVSROOT) 2>/dev/null ) )
		COMPREPLY=( ${COMPREPLY[@]/$cvsroot/} )
		COMPREPLY=( ${COMPREPLY[@]/\//} )
	}

	local cur count mode i cvsroot pwd
	local -a flags miss files entries changed newremoved

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	count=1
	for i in ${COMP_WORDS[@]}; do
		[ $count -eq $COMP_CWORD ] && break
		if [ -z "$mode" ]; then
			case $i in
			-d)
				cvsroot=${COMP_WORDS[((++count))]}
				;;
			@(add|new))
				mode=add
				;;
			@(admin|rcs))
				mode=admin
				;;
			@(checkout|co|get))
				mode=checkout
				;;
			@(commit|ci))
				mode=commit
				;;
			@(diff|@(ex|im)port|history|release|status|update))
				mode=$i
				;;
			?(r)log)
				mode=log
				;;
			@(rdiff|patch))
				mode=rdiff
				;;
			@(remove|rm|delete))
				mode=remove
				;;
			@(rtag|rfreeze))
				mode=rtag
				;;
			@(tag|freeze))
				mode=tag
				;;
			*)
				;;
			esac
			continue
		elif [[ "$i" = -* ]]; then
			flags=( ${flags[@]} $i )
		fi
		count=$((++count))
	done

	case "$mode" in
	add)
		if [[ "$cur" != -* ]] ; then
			set_prefix
			if [ $COMP_CWORD -gt 1 -a -r ${prefix}CVS/Entries ]; then
				get_entries
				[ -z "$cur" ] && \
				files=$( \ls -d ${prefix}!(CVS) ) || \
				files=$( \ls -d ${cur}* )
				for i in ${entries[@]}; do
					files=( ${files[@]/%$i/} )
				done
				COMPREPLY=( $( compgen -W '${files[@]}' $cur ) )
			fi
		else
			COMPREPLY=( $( compgen -W '-k -m' -- $cur ) )
		fi
		;;
	admin)
		if [[ "$cur" = -* ]] ; then
			COMPREPLY=( $( compgen -W '-i -a -A -e -b -c -k -l -u \
						   -L -U -m -M -n -N -o -q -I \
						   -s -t -t- -T -V -x -z' -- \
					$cur ) )
		fi
		;;
	checkout)
		if [[ "$cur" != -* ]] ; then
			# can only do for local repositories
			[ -z "$cvsroot" ] && cvsroot=$CVSROOT
			if [ -r $cvsroot ]; then
				get_modules
				COMPREPLY=( $( compgen -W \
					       '${COMPREPLY[@]}' $cur ) )
			fi
		else
			COMPREPLY=( $( compgen -W '-A -N -P -R -c -f -l -n -p \
						  -s -r -D -d -k -j' -- $cur ) )
		fi
		;;
	commit)
		set_prefix
		if [[ "$cur" != -* ]] && [ -r ${prefix}CVS/Entries ]; then
			# this is the least computationally intensive way
			# found so far, but other changes (something other than
			# changed/removed/new) may be missing
			changed=$( cvs diff --brief 2>&1 | \
			sed -ne 's/^Files [^ ]\+ and \([^ ]\+\) differ$/\1/p' )
			newremoved=$( cvs diff --brief 2>&1 | \
			sed -ne 's/^cvs diff: \([^ ]\+\), no comparison available$/\1/p' )
			COMPREPLY=( $( compgen -W '${changed[@]} \
						   ${newremoved[@]}' $cur ) )
		else
			COMPREPLY=( $( compgen -W '-n -R -l -f -F -m -r' -- \
				       $cur ) )
		fi
		;;
	remove)
		if [[ "$cur" != -* ]] ; then
			set_prefix
			if [ $COMP_CWORD -gt 1 -a -r ${prefix}CVS/Entries ]; then
				get_entries
				# find out what files are missing
				for i in ${entries[@]}; do
					[ ! -r "$i" ] && miss=( ${miss[@]} $i )
				done
				COMPREPLY=( $( compgen -W '${miss[@]}' $cur ) )
			fi
		else
			COMPREPLY=( $( compgen -W '-f -l -R' -- $cur ) )
		fi
		;;
	import)
		if [[ "$cur" != -* ]] ; then
			# starts with same algorithm as checkout
			[ -z "$cvsroot" ] && cvsroot=$CVSROOT
			[ -r $cvsroot ] && get_modules
			pwd=$( pwd )
			pwd=${pwd##*/}
			COMPREPLY=( $( compgen -W '${COMPREPLY[@]} $pwd' $cur ))
		else
			COMPREPLY=( $( compgen -W '-d -k -I -b -m -W' -- $cur ))
		fi
		;;
	*)
		COMPREPLY=( $( compgen -W 'add admin checkout ci co commit \
					   diff delete export freeze get \
					   history import log new patch rcs \
					   rdiff release remove rfreeze rlog \
					   rm rtag status tag update -H -Q -q \
					   -b -d -e -f -l -n -t -r -v -w -x \
					   -z --help --version' -- $cur ) )
		;;
	esac
	
	return 0
}
[ "$have" ] && complete -F _cvs -o default cvs

# rpm(8) completion
# 
have rpm &&
_rpm()
{
	add_package_list()
	{
		if [ -r /var/log/rpmpkgs -a \
			/var/log/rpmpkgs -nt /var/lib/rpm/Packages ]; then
			# using RHL 7.2 - this is quicker than querying the DB
			COMPREPLY=( ${COMPREPLY[@]} \
			$( sed -ne 's/^\('$cur'.*\)-[0-9a-zA-Z._]\+-[0-9a-z.]\+.*\.rpm$/\1/p' /var/log/rpmpkgs ) )
		else
			COMPREPLY=( ${COMPREPLY[@]} $( rpm -qa | \
			sed -ne 's/^\('$cur'.*\)-[0-9a-zA-Z._]\+-[0-9a-z.]\+$/\1/p' ) )
		fi
	}

	file_glob()
	{
		_expand || return 0

		COMPREPLY=( ${COMPREPLY[@]} $( compgen -f -X "!*.$1" -- $cur ) )
	    	COMPREPLY=( ${COMPREPLY[@]} $( compgen -d -- $cur ) )
	}

	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	if [ $COMP_CWORD -eq 1 ]; then
		# first parameter on line
		case "$cur" in
		-b*)
			COMPREPLY=( $( compgen -W '-ba -bb -bc -bi -bl -bp -bs'\
				       -- $cur ) )
			;;
		-t*)
			COMPREPLY=( $( compgen -W '-ta -tb -tc -ti -tl -tp -ts'\
				       -- $cur ) )
			;;
		--*)
			COMPREPLY=( $( compgen -W '--help --version --initdb \
			--checksig --recompile --rebuild --resign --addsign \
			--rebuilddb --showrc --setperms --setugids --tarbuild \
			--eval --install --upgrade --query --freshen --erase \
			--verify --querytags --rmsource --rmspec --clean' -- \
			$cur ) )
			;;
		*)
			COMPREPLY=( $( compgen -W '-b -e -F -i -q -t -U -V' \
				       -- $cur ) )
			;;
		esac

	return 0
	fi

	case "$prev" in
	--@(@(db|exclude)path|prefix|relocate|root))
		_filedir -d
		return 0
		;;
	--eval)
		# get a list of macros
		COMPREPLY=( $( sed -ne 's/^\(%'${cur#\%}'[^ '$'\t'']*\).*$/\1/p' \
			       /usr/lib/rpm/macros ) )
		return 0
		;;
	--pipe)
		COMPREPLY=( $( compgen -c -- $cur ) )
		return 0
		;;
	--rcfile)
		_filedir
		return 0
		;;
	--specfile)
		# complete on .spec files
		file_glob spec
		return 0
		;;
	--whatprovides)
		# complete on capabilities
		COMPREPLY=( $( rpm -qa --queryformat '%{providename}\n' | grep ^$cur ) )
		return 0
		;;
	--whatrequires)
		# complete on capabilities
		COMPREPLY=( $( rpm -qa --queryformat '%{requirename}\n' | grep ^$cur ) )
		return 0
		;;
	esac

	case "${COMP_WORDS[1]}" in
	-@([iFU]*|-install|-freshen|-upgrade))
		# complete on list of relevant options
		COMPREPLY=( $( compgen -W '--percent --force --test \
		--replacepkgs --replacefiles --root --excludedocs \
		--includedocs --noscripts --rcfile --ignorearch --dbpath \
		--prefix --ignoreos --nodeps --allfiles --ftpproxy --ftpport \
		--justdb --httpproxy --httpport --noorder --relocate \
		--badreloc --notriggers --excludepath --ignoresize \
		--oldpackage --define --eval --pipe --queryformat \
		--repackage' -- $cur ) )
		# return if $cur is an option
		[[ "$cur" == -* ]] && return 0
		# add a list of RPMS to possible completions
		file_glob rpm
		;;
	-q*p*)
		# complete on list of relevant options
		COMPREPLY=( $( compgen -W '--scripts --root --rcfile \
		--whatprovides --whatrequires --requires --triggeredby \
		--ftpport --ftpproxy --httpproxy --httpport --provides \
		--triggers --dump --changelog --dbpath --filesbypkg --define \
		--eval --pipe --showrc --info --list --state --docfiles \
		--configfiles --queryformat --conflicts --obsoletes' -- $cur ) )
		# return if $cur is an option
		[[ "$cur" == -* ]] && return 0
		# add a list of RPMS to possible completions
		file_glob rpm
		;;
	-*f)
		# standard filename completion
		_filedir
		;;
	-@(e|-erase))
		# complete on list of relevant options
		COMPREPLY=( $( compgen -W '--allmatches --noscripts \
		--notriggers --nodeps --test --repackage' -- $cur ) )
		# return if $cur is an option
		[[ "$cur" == -* ]] && return 0
		add_package_list
		;;
	-q*)
		# complete on list of relevant options
		COMPREPLY=( $( compgen -W '--scripts --root --rcfile \
		--whatprovides --whatrequires --requires --triggeredby \
		--ftpport --ftpproxy --httpproxy --httpport --provides \
		--triggers --dump --changelog --dbpath --specfile \
		--querybynumber --last --filesbypkg --define --eval --pipe \
		--showrc --info --list --state --docfiles --configfiles \
		--queryformat --conflicts --obsoletes --pkgid --hdrid \
		--fileid --tid' -- $cur ) )
		# return if $cur is an option
		[[ "$cur" == -* ]] && return 0
		# don't complete on packages if we are querying all packages
		[[ ${COMP_WORDS[1]} == -qa* ]] && return 0
		add_package_list
		;;
	-@(K|-checksig))
		# complete on list of relevant options
		COMPREPLY=( $( compgen -W '--nopgp --nogpg --nomd5' -- $cur ) )
		# return if $cur is an option
		[[ "$cur" == -* ]] && return 0
		# add a list of RPMS to possible completions
		file_glob rpm
		;;
	-@([Vy]*|-verify))
		# complete on list of relevant options
		COMPREPLY=( $( compgen -W '--root --rcfile --dbpath --nodeps \
		--nofiles --noscripts --nomd5' -- $cur ) )
		# return if $cur is an option
		[[ "$cur" == -* ]] && return 0
		add_package_list
		;;
	-[bt]*)
		# complete on list of relevant options
		COMPREPLY=( $( compgen -W '--short-circuit --timecheck \
		--clean --rmsource --rmspec --test --sign --buildroot \
		--targetbuildarch --buildos --nobuild --nodeps --nodirtokens' \
		-- $cur ) )
		# return if $cur is an option
		[[ "$cur" == -* ]] && return 0
		if [[ ${COMP_WORDS[1]} == -b* ]]; then
			# complete on .spec files
			file_glob spec
		else
			_expand || return 0
			# complete on .tar files
			file_glob '@(tgz|tar.@(gz|bz2))'
		fi
		;;
	--re@(build|compile))
		_expand || return 0
		COMPREPLY=( $( compgen -W '--nodeps --rmsource --rmspec \
		--sign --nodirtokens' -- $cur ) )
		# return if $cur is an option
		[[ "$cur" == -* ]] && return 0
		# complete on source RPMs
		COMPREPLY=( ${COMPREPLY[@]} $( compgen -f -X '!*.src.rpm' -- \
					       $cur ) )
		COMPREPLY=( ${COMPREPLY[@]} $( compgen -d -- $cur ) )
		;;
	--tarbuild)
		_expand || return 0
		# complete on tarred sources
		file_glob '@(tgz|tar.@(gz|bz2))'
		;;
	--@(re|add)sign)
		# complete on RPMs
		file_glob rpm
		;;
	--set@(perms|gids))
		add_package_list
		;;
	--@(clean|rms@(ource|pec)))
		COMPREPLY=( $( compgen -W '--clean --rmsource --rmspec' -- \
			       $cur ) )
		# return if $cur is an option
		[[ "$cur" == -* ]] && return 0
		file_glob spec
		;;
	-*g)
		# package group completion
		local IFS=$'\t'
		# remove trailing backslash, or grep will complain
		cur=${cur%'\'}
		COMPREPLY=( $( rpm -qa --queryformat '%{group}\n' | \
			       grep ^$cur ) )
		# backslash escape spaces and translate newlines to tabs
		COMPREPLY=( $( echo ${COMPREPLY[@]} | sed 's/ /\\ /g' | \
			       tr '\n' '\t' ) )
		;;
	esac

	return 0
}
[ "$have" ] && complete -F _rpm -o filenames rpm

# Debian Linux apt-get(8) completion.
#
have apt-get &&
_apt_get()
{
	local cur prev special i

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	for (( i=0; i < ${#COMP_WORDS}-1; i++ )); do
		if [[ ${COMP_WORDS[i]} == @(install|remove|source) ]]; then
			special=${COMP_WORDS[i]}
		fi
	done
	if [ -n "$special" ]; then
		case $special in
		@(install|remove|source))
			COMPREPLY=( $( apt-cache pkgnames $cur ) )
			return 0
			;;
		esac
	fi

	if [[ "$prev" == -*c ]] || [ "$prev" = --config-file ]; then
		_filedir
	else
		COMPREPLY=( $( compgen -W 'update upgrade dselect-upgrade \
				  dist-upgrade install remove source check \
				  clean autoclean -d -f -h -v -m -q -s -y -u \
				  -b -c -o --download-only --fix-broken --help \
				  --version --ignore-missing --fix-missing \
				  --no-download --quiet --simulate \
				  --just-print --dry-run --recon --no-act \
				  --yes --assume-yes --show-upgraded \
				  --compile --build --ignore-hold \
				  --no-upgrade --force-yes --print-uris \
				  --purge --reinstall --list-cleanup \
				  --trivial-only --no-remove --diff-only \
				  --tar-only --config-file --option' -- $cur ) )
	fi

	return 0
}
[ "$have" ] && complete -F _apt_get -o filenames apt-get

# Debian Linux apt-cache(8) completion.
#
have apt-cache &&
_apt_cache()
{
	local cur prev special i

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	
	for (( i=0; i < ${#COMP_WORDS}-1; i++ )); do
		if [[ ${COMP_WORDS[i]} == @(add|show?(pkg)|depends|dotty) ]]; then
			special=${COMP_WORDS[i]}
		fi
	done
	if [ -n "$special" ]; then
		case $special in
		add)
			_filedir
			return 0
			;;
		show?(pkg)|depends|dotty)
			COMPREPLY=( $( apt-cache pkgnames $cur ) )
			return 0
			;;
		esac
	fi


	if [[ "$prev" == -*c ]] || [ "$prev" = --config-file ]; then
		_filedir
	else
		COMPREPLY=( $( compgen -W 'add gencaches showpkg stats dump \
				dumpavail unmet check search show dotty \
				depends pkgnames -h -v -p -s -q -i -f -a -g -c \
				-o --help --version --pkg-cache --src-cache \
				--quiet --important --full --all-versions \
				--no-generate --names-only --all-names \
				--config-file --option' -- $cur ) )
	fi

	return 0
}
[ "$have" ] && complete -F _apt-cache -o filenames apt-cache
complete -F _apt_cache -o filenames apt-cache

# chsh(1) completion
#
_chsh()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	if [ "$prev" = "-s" ]; then
		COMPREPLY=( $( chsh -l | grep ^$cur ) )
	else
		COMPREPLY=( $( compgen -u -- $cur ) )
	fi

	return 0
}
complete -F _chsh chsh

# chkconfig(8) completion
#
have chkconfig &&
_chkconfig()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	if [ $COMP_CWORD -eq 1 ]; then
		COMPREPLY=( $( compgen -W '--list --add --del --level' -- \
			       $cur ) )
		return 0
	fi

	if [ $COMP_CWORD -eq 4 ]; then
		COMPREPLY=( $( compgen -W 'on off reset' -- $cur ) )
		return 0
	fi

	case "$prev" in
	@([1-6]|--@(list|add|del)))
		COMPREPLY=( $( compgen -W "`(cd /etc/rc.d/init.d; echo *)`" \
			       -- $cur) )
		return 0
		;;
	--level)
		COMPREPLY=( $( compgen -W '1 2 3 4 5 6' -- $cur ) )
		return 0
		;;
	esac

	return 0
}
[ "$have" ] && complete -F _chkconfig chkconfig

# This function performs host completion based on ssh's known_hosts files,
# defaulting to standard host completion if they don't exist.
#
_known_hosts()
{
	local cur user suffix
	local -a kh

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	[ "$1" = -c ] && suffix=':'
	[[ $cur == *@* ]] && user=${cur%@*}@ && cur=${cur#*@}
	kh=()

	[ -r /etc/known_hosts ]    && kh[0]=/etc/known_hosts
	[ -r /etc/known_hosts2 ]   && kh[1]=/etc/known_hosts2
	[ -r ~/.ssh/known_hosts ]  && kh[2]=~/.ssh/known_hosts
	[ -r ~/.ssh/known_hosts2 ] && kh[3]=~/.ssh/known_hosts2

	# If we have known_hosts files to use
	if [ ${#kh[@]} -gt 0 ]; then
	    # Escape slashes and dots in paths for awk
	    cur=${cur//\//\\\/}
	    cur=${cur//\./\\\.}
	    if [[ "$cur" == [0-9]*.* ]]; then
		# Digits followed by a dot - just search for that
		cur="^$cur.*"
	    elif [[ "$cur" == [0-9]* ]]; then
		# Digits followed by no dot - search for digits followed
		# by a dot
		cur="^$cur.*\."
	    elif [ -z "$cur" ]; then
		# A blank - search for a dot or an alpha character
		cur="[a-z.]"
	    else
		cur="^$cur"
	    fi
	    # FS needs to look for a comma separated list
	    COMPREPLY=( $( awk 'BEGIN {FS=","}
				{for (i=1; i<=2; ++i) { \
				       gsub(" .*$", "", $i); \
				       if ($i ~ /'$cur'/) {print $i} \
				}}' ${kh[@]} ) )
	    for (( i=0; i < ${#COMPREPLY[@]}; i++ )); do
		COMPREPLY[i]=$user${COMPREPLY[i]}$suffix
	    done
	else
	    # Just do normal hostname completion
	    COMPREPLY=( $( compgen -A hostname -S "$suffix" -- $cur ) )
	fi

	return 0
}
complete -F _known_hosts traceroute ping fping telnet host nslookup rsh \
			 rlogin ftp

# ssh(1) completion. Should be able to improve this with user@host notation,
# but the '@' seems to trigger some kind of bug in bash's completion.
#
have ssh &&
_ssh()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case "$prev" in
	-*c)
	    COMPREPLY=( $( compgen -W 'blowfish 3des 3des-cbc blowfish-cbc \
			   arcfour cast128-cbc' -- $cur ) )
	    ;;
	-*l)
	    COMPREPLY=( $( compgen -u -- $cur ) )
	    ;;
	*)
	    _known_hosts
	    [ $COMP_CWORD -eq 1 ] || \
		COMPREPLY=( ${COMPREPLY[@]} $( compgen -c -- $cur ) )
	esac

	return 0
}
[ "$have" ] && shopt -u hostcomplete && complete -F _ssh ssh slogin sftp

have scp &&
_scp()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	_expand || return 0

	[[ "$cur" == */* ]] || _known_hosts -c
	_filedir

	return 0
}
[ "$have" ] && complete -o filenames -F _scp scp


# Linux route(8) completion. This could be improved by adding address family
# completion for -A, etc.
#
[ $OS = Linux ] &&
_route()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	if [ "$prev" = dev ]; then
	    COMPREPLY=( $( ifconfig -a | sed -ne 's/^\('$cur'[^ ]*\).*$/\1/p' ))
	    return 0
	fi

	COMPREPLY=( $( compgen -W 'add del -host -net netmask metric mss \
				   window irtt reject mod dyn reinstate dev' \
				   -- $cur ) )

	COMPREPLY=( $( echo " ${COMP_WORDS[@]}" | \
		       (while read -d ' ' i; do
			   [ "$i" == "" ] && continue
			   # flatten array with spaces on either side,
			   # otherwise we cannot grep on word
			   # boundaries of first and last word
			   COMPREPLY=" ${COMPREPLY[@]} "
			   # remove word from list of completions
			   COMPREPLY=( ${COMPREPLY/ $i / } )
			done
		       echo ${COMPREPLY[@]})
		  ) )
	return 0
}
[ $OS = Linux ] && complete -F _route route

# GNU make(1) completion (adapted from the example supplied with the bash 2.04
# source code)
#
have make &&
_make()
{
	local mdef makef gcmd cur prev i

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	# if prev argument is -f, return possible filename completions.
	# we could be a little smarter here and return matches against
	# `makefile Makefile *.mk', whatever exists
	if [[ "$prev" == -*f ]]; then
		_filedir
		return 0
	fi

	# check for a long option
	if [[ "$cur" == --* ]]; then
		_longopt $1
		return 0
	fi

	# if we want an option, return the possible posix options
	if [[ "$cur" == -* ]]; then
		COMPREPLY=( $( compgen -W '-e -f -i -k -n -p -q -r -S -s -t' \
			       -- $cur ) )
		return 0
	fi

	# make reads `makefile' before `Makefile'
	if [ -f makefile ]; then
		mdef=makefile
	elif [ -f Makefile ]; then
		mdef=Makefile
	else
		mdef=*.mk	       # local convention
	fi

	# before we scan for targets, see if a makefile name was specified
	# with -f
	for (( i=0; i < ${#COMP_WORDS[@]}; i++ )); do
		if [[ ${COMP_WORDS[i]} == -*f ]]; then
			eval makef=${COMP_WORDS[i+1]} # eval for tilde expansion
			break
		fi
	done

	[ -z "$makef" ] && makef=$mdef

	# if we have a partial word to complete, restrict completions to
	# matches of that word
	[ -n "$2" ] && gcmd='grep "^$2"' || gcmd=cat

	# if we don't want to use *.mk, we can take out the cat and use
	# test -f $makef and input redirection  
	COMPREPLY=( $( cat $makef 2>/dev/null | \
		       awk 'BEGIN {FS=":"} /^[^.#	][^=]*:/ {print $1}' | \
		       eval $gcmd ) )

	# default to filename completion if all else failed
	[ ${#COMPREPLY[@]} -eq 0 ] && _filedir

	return 0
}
[ "$have" ] && complete -F _make -X '+($*|*.[cho])' -o filenames make gmake pmake

# Red Hat Linux service completion. This completes on a list of all available
# service scripts in the SysV init.d directory, followed by that script's
# available commands
#
have service &&
_service()
{
	local cur sysvdir

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	[ -d /etc/rc.d/init.d ] && sysvdir=/etc/rc.d/init.d \
				|| sysvdir=/etc/init.d

	#[[ "$cur" == -* ]] && return 0
	if [ $COMP_CWORD -eq 1 ]; then
		COMPREPLY=( $( compgen -W '`echo $sysvdir/!(*.rpmsave|*.rpmorig)`' ) )
		COMPREPLY=( $( compgen -W '${COMPREPLY[@]#$sysvdir/}' -- \
			       $cur ) )
	else
		COMPREPLY=( $( compgen -W '`sed -ne "y/|/ /; \
					    s/^.*Usage.*{\(.*\)}.*$/\1/p" \
					    $sysvdir/${COMP_WORDS[1]}`' -- \
			       $cur ) )
	fi

	return 0
}
[ "$have" ] && complete -F _service service

# The beginnings of a completion function for GNU tar(1)
#
_tar()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	[ $COMP_CWORD -eq 1 ] && return 0

	case "${COMP_WORDS[1]}" in
	c*f)
		_filedir
		;;
	+([^zj])f)
		COMPREPLY=( $( compgen -d -- $cur ) \
			    $( compgen -f -X '!*.tar' -- $cur ) )
		;;
	*z*f)
		COMPREPLY=( $( compgen -d -- $cur ) \
			    $( compgen -f -X '!*.t?(ar.)gz' -- $cur ) )
		;;
	*j*f)
		COMPREPLY=( $( compgen -d -- $cur ) \
			    $( compgen -f -X '!*.tar.bz2' -- $cur ) )
		;;
	*)
		_filedir
		;;
		
	esac

	return 0
}
complete -F _tar -o filenames tar

# Linux iptables(8) completion
#
have iptables &&
_iptables()
{
	local cur prev table chain

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]} 
	prev=${COMP_WORDS[COMP_CWORD-1]}
	chain='s/^Chain \([^ ]\+\).*$/\1/p'

	if [[ $COMP_LINE == *-t\ *filter* ]]; then
		table="-t filter"
	elif [[ $COMP_LINE == *-t\ *nat* ]]; then
		table="-t nat"
	elif [[ $COMP_LINE == *-t\ *mangle* ]]; then
		table="-t mangle"
	fi

	case "$prev" in
	-*[AIDPFXL])
		COMPREPLY=( $( compgen -W '`iptables $table -nL | sed -ne "s/^Chain \([^ ]\+\).*$/\1/p"`' -- $cur ) )
		;;
	-*t)
		COMPREPLY=( $( compgen -W 'nat filter mangle' -- $cur ) )
		;;
	-j)
		if [ "$table" = "-t filter" -o "$table" = "" ]; then
		    COMPREPLY=( $( compgen -W 'ACCEPT DROP LOG ULOG REJECT \
		    `iptables $table -nL | sed -ne "$chain" \
		    -e "s/INPUT|OUTPUT|FORWARD|PREROUTING|POSTROUTING//"`' -- \
		    $cur ) )
		elif [ "$table" = "-t nat" ]; then
		    COMPREPLY=( $( compgen -W 'ACCEPT DROP LOG ULOG REJECT \
		    MIRROR SNAT DNAT MASQUERADE `iptables $table -nL | \
		    sed -ne "$chain" -e "s/OUTPUT|PREROUTING|POSTROUTING//"`' \
		    -- $cur ) )
		elif [ "$table" = "-t mangle" ]; then
		    COMPREPLY=( $( compgen -W 'ACCEPT DROP LOG ULOG REJECT \
		    MARK TOS `iptables $table -nL | sed -ne "$chain" \
		    -e "s/INPUT|OUTPUT|FORWARD|PREROUTING|POSTROUTING//"`' -- \
		    $cur ) )
		fi
		;;
	*)
		;;
	esac

} 
[ "$have" ] && complete -F _iptables iptables

# tcpdump(8) completion
#
have tcpdump &&
_tcpdump()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	COMPREPLY=( $( compgen -W 'host net port src dst ether gateway \
				   less greater' -- $cur ) )

}
[ "$have" ] && complete -F _tcpdump tcpdump

# This meta-cd function observes the CDPATH variable, so that cd additionally
# completes on directories under those specified in CDPATH.
#
_cd()
{
	local IFS=$'\t\n' cur=${COMP_WORDS[COMP_CWORD]} dirs=() i

	_expand || return 0

	# standard dir completion if parameter starts with /, ./ or ../
	if [[ "$cur" == ?(.)?(.)/* ]]; then
		_filedir -d
		return 0
	fi
	if [ -n "$CDPATH" ]; then
		# we have a CDPATH, so loop on its contents
		for i in ${CDPATH//:/$'\t'}; do
			# create an array of matched subdirs
			dirs=( $( compgen -d $i/$cur ) )
			# add subdirs to list of completions as necessary
			[ ${#dirs[@]} ] && COMPREPLY=( ${COMPREPLY[@]} ${dirs[@]#$i/})
		done
	fi
	IFS=$' \t\n'
	_filedir -d

	return 0
}
complete -F _cd -o filenames cd

# A meta-command completion function for commands like sudo(8), which need to
# first complete on a command, then complete according to that command's own
# completion definition - currently not quite foolproof (e.g. mount and umount
# don't work properly), but still quite useful
#
_command()
{
	local cur func cline cspec

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	if [ $COMP_CWORD -eq 1 ]; then
		COMPREPLY=( $( compgen -c -- $cur ) )
	elif complete -p ${COMP_WORDS[1]} &>/dev/null; then
		cspec=$( complete -p ${COMP_WORDS[1]} )
		if [ "${cspec#*-F }" != "$cspec" ]; then
			# complete -F <function>
			#
			# COMP_CWORD and COMP_WORDS() are not read-only,
			# so we can set them before handing off to regular
			# completion routine

			# set current token number to 1 less than now
			COMP_CWORD=$(( $COMP_CWORD - 1 ))
			# get function name
			func=${cspec#*-F }
			func=${func%% *}
			# get current command line minus initial command
			cline="${COMP_LINE#$1 }"
			# split current command line tokens into array
			COMP_WORDS=( $cline )
			$func $cline
		elif [ "${cspec#*-[abcdefgjkvu]}" != "$cspec" ]; then
			# complete -[abcdefgjkvu]
			func=$( echo $cspec | \
				sed -e 's/^.*\(-[abcdefgjkvu]\).*$/\1/' )
			COMPREPLY=( $( compgen $func -- $cur ) )
		elif [ "${cspec#*-A}" != "$cspec" ]; then
			# complete -A <type>
			func=${cspec#*-A }
			func=${func%% *}
			COMPREPLY=( $( compgen -A $func -- $cur ) )
		fi
	fi

	[ ${#COMPREPLY[@]} -eq 0 ] && _filedir
}
complete -F _command -o filenames nohup exec nice eval strace

_root_command()
{
	PATH=$PATH:/sbin:/usr/sbin:/usr/local/sbin _command $1
}
complete -F _root_command -o filenames sudo

# Perforce completion by Frank Cusack (frank@google.com)
#
have p4 &&
_p4()
{
	local cur prev prev2 p4commands p4filetypes

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	# rename isn't really a command
	p4commands="add admin branch branches change changes client \
		clients counter counters delete depot depots describe \
		diff diff2 dirs edit filelog files fix fixes flush \
		fstat group groups have help info integrate integrated \
		job jobs jobspec label labels labelsync lock obliterate \
		opened passwd print protect rename reopen resolve \
		resolved revert review reviews set submit sync triggers \
		typemap unlock user users verify where"
	p4filetypes="ctext cxtext ktext kxtext ltext tempobj ubinary \
		uresource uxbinary xbinary xltext xtempobj xtext \
		text binary resource"

	if [ $COMP_CWORD -eq 1 ]; then
		COMPREPLY=( $( compgen -W "$p4commands" -- $cur ) )
	elif [ $COMP_CWORD -eq 2 ]; then
		case "$prev" in
		help)
			COMPREPLY=( $( compgen -W "simple commands \
				environment filetypes jobview revisions \
				usage views $p4commands" -- $cur ) )
			;;
		admin)
			COMPREPLY=( $( compgen -W "checkpoint stop" -- $cur ) )
			;;
		*)
			;;
		esac
	elif [ $COMP_CWORD -gt 2 ]; then
		prev2=${COMP_WORDS[COMP_CWORD-2]}
		case "$prev" in
		-t)
			case "$prev2" in
			add|edit|reopen)
				COMPREPLY=( $( compgen -W "$p4filetypes" \
					       -- $cur) )
				;;
			*)
				;;
			esac
			;;
		*)
			;;
		esac
	fi

	return 0
}
[ "$have" ] && complete -F _p4 -o default p4 g4

# ant completion is modified from the original submitted by
# Claus-Peter Klas <peter.klas@uni-dortmund.de>
#
have ant &&
_ant_targets()
{
	COMPREPLY=()
	local gcmd

	# if we have a partial word to complete, restrict completions to
	# matches of that word
	[ ! -f build.xml ] && return 0

	[ -n "$2" ] && gcmd='grep "^$2"' || gcmd=cat

	COMPREPLY=( $( awk 'BEGIN {FS="\""} /\<target/ {print $2}' < build.xml \
	| tr -s ' ' '\012' | sort -u | eval $gcmd ) )
}
[ "$have" ] && complete -F _ant_targets ant

have nslookup &&
_nslookup()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]#-}

	COMPREPLY=( $( compgen -P '-' -W 'all class= debug d2 domain= \
			       srchlist= defname search port= querytype= \
			       type= recurse retry root timeout vc \
			       ignoretc' -- $cur ) )
}
[ "$have" ] && complete -F _nslookup nslookup

# mysqladmin(1) completion
#
have mysqladmin &&
_mysqladmin()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]} 
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case "$prev" in
	-u)
		COMPREPLY=( $( compgen -u -- $cur ) )
		return 0
		;;
	*)
		;;
	esac

	COMPREPLY=( $( compgen -W '-# -f -? -C -h -p -P -i -r -E -s -S -t -u \
					      -v -V -w' -- $cur ) )

	COMPREPLY=( ${COMPREPLY[@]} \
		    $( compgen -W 'create drop extended-status flush-hosts \
				   flush-logs flush-status flush-tables \
				   flush-threads flush-privileges kill \
				   password ping processlist reload refresh \
				   shutdown status variables version' \
		       -- $cur ) )
}
[ "$have" ] && complete -F _mysqladmin mysqladmin

# gzip(1) and bzip2(1) completion
#
have gzip &&
_zip()
{
	local IFS cur prev xspec

	IFS=$'\t\n'
	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	[ ${COMP_WORDS[0]} = "gzip" ] && xspec="*.gz"
	[ ${COMP_WORDS[0]} = "bzip2" ] && xspec="*.bz2"
	[[ "$prev" == -*d* ]] && xspec="!"$xspec

	_expand || return 0

	COMPREPLY=( $( compgen -f -X "$xspec" -- $cur ) \
		    $( compgen -d -- $cur ) )
}
[ "$have" ] && complete -F _zip -o filenames gzip bzip2

# openssl(1) completion
#
have openssl &&
_openssl()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	if [ $COMP_CWORD -eq 1 ]; then
		COMPREPLY=( $( compgen -W 'asn1parse ca ciphers crl crl2pkcs7 \
			dgst dh dhparam dsa dsaparam enc errstr gendh gendsa \
			genrsa nseq passwd pkcs12 pkcs7 pkcs8 rand req rsa \
			rsautl s_client s_server s_time sess_id smime speed \
			spkac verify version x509 md2 md4 md5 mdc2 rmd160 sha \
			sha1 base64 bf bf-cbc bf-cfb bf-ecb bf-ofb cast \
			cast-cbc cast5-cbc cast5-cfb cast5-ecb cast5-ofb des \
			des-cbc des-cfb des-ecb des-ede des-ede-cbc \
			des-ede-cfb des-ede-ofb des-ede3 des-ede3-cbc \
			des-ede3-cfb des-ede3-ofb des-ofb des3 desx rc2 \
			rc2-40-cbc rc2-64-cbc rc2-cbc rc2-cfb rc2-ecb rc2-ofb \
			rc4 rc4-40' -- $cur ) )
        fi

        return 0
}
[ $have ] && complete -F _openssl -o default openssl

# screen(1) completion
#
have screen &&
_screen()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case "$prev" in
	-[rR])
		# list detached
		COMPREPLY=( $( \screen -ls | sed -ne 's/^['$'\t'']\+\('$cur'[^'$'\t'']\+\).*Detached.*$/\1/p' ) )
		;;
	-[dDx])
		# list attached
		COMPREPLY=( $( \screen -ls | sed -ne 's/^['$'\t'']\+\('$cur'[^'$'\t'']\+\).*Attached.*$/\1/p' ) )
		;;
	-s)
		# shells
		COMPREPLY=( $( grep ^$cur /etc/shells ) )
		;;
	*)
		;;
        esac

        return 0
}
[ $have ] && complete -F _screen -o default screen

# ncftp(1) bookmark completion
#
have ncftp &&
_ncftp()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	if [ $COMP_CWORD -eq 1 ] && [ -f ~/.ncftp/bookmarks ]; then
		COMPREPLY=( $( compgen -W '`cut --output-delimiter " " \
			       -s -f1-2 -d, ~/.ncftp/bookmarks`' -- $cur ) )
        fi

        return 0
}
[ $have ] && complete -F _ncftp -o default ncftp

# gdb(1) completion
#
have gdb &&
_gdb()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	if [ $COMP_CWORD -eq 1 ]; then
		COMPREPLY=( $( compgen -c -- $cur ) )
	elif [ $COMP_CWORD -eq 2 ]; then
		COMPREPLY=( ${COMPREPLY[@]} $( ps ahx | sed -e 's#[]\[()]##g' |\
					awk '{p=$5;sub("^.*/","",p); \
					if (p ~ /^'$prev'/) print $1}' | \
					sed -e 's#^.*/##' ))
	fi
}
[ $have ] && complete -F _gdb -o default gdb

# psql(1) completion
#
have psql &&
_psql() 
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case "$prev" in
	-h) 
		_known_hosts
		return 0
		;;
	-U)
		COMPREPLY=( $( psql -qtc 'select usename from pg_user' \
			       2>/dev/null | grep "^ $cur" ) )
		[ ${#COMPREPLY[@]} -eq 0 ] && \
			COMPREPLY=( $( compgen -u -- $cur ) ) 
		return 0
		;;
	*)
		COMPREPLY=( $( psql -l | sed -ne 's/^ \('$cur'[^ ]*\).*$/\1/p' ) )
		return 0
		;;
	esac
}
[ "$have" ] && complete -F _psql -o default psql

_longopt()
{
	local cur

	cur=${COMP_WORDS[COMP_CWORD]}

	_expand || return 0

	if [[ "$cur" == -* ]]; then
		COMPREPLY=( $( $1 --help | sed  -e '/--/!d' \
				-e 's/.*\(--[-A-Za-z0-9]\+=\?\).*/\1/' | \
			       grep ^$cur | sort -u ) )
	elif [[ "$1" == @(mk|rm)dir ]]; then
		_filedir -d
	else
		_filedir
	fi
}
# makeinfo and texi2dvi are defined elsewhere
for i in a2ps autoconf automake bc gprof ld nm objcopy objdump readelf strip \
	 bison cpio diff patch enscript cp df dir du ln ls mkfifo mknod mv rm \
	 touch vdir xargs awk gperf grep gpg grub indent less m4 sed shar date \
	 env seq su tee uname who texindex cat csplit cut expand fmt fold head \
	 md5sum nl od paste pr ptx sha1sum sort split tac tail tr unexpand \
	 uniq wc units wget rsync ldd bash id info irb mkdir rmdir; do
    have $i && complete -F _longopt -o filenames $i
done
unset i

# gcc(1) completion, originally by Phil Edwards <phil@jaj.com>
#
# The only unusual feature is that we don't parse "gcc --help -v" output
# directly, because that would include the options of all the other backend
# tools (linker, assembler, preprocessor, etc) without any indication that
# you cannot feed such options to the gcc driver directly.  (For example, the
# linker takes a -z option, but you must type -Wl,-z for gcc.)  Instead, we
# ask the driver ("g++") for the name of the compiler ("cc1"), and parse the
# --help output of the compiler.
#
have gcc &&
_gcc()
{
	local cur cc backend

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	_expand || return 0

	case "$1" in
	gcj)
		backend=jc1
		;;
	gpc)
		backend=gpc1
		;;
	*77)
		backend=f771
		;;
	*)
		backend=cc1	# (near-)universal backend
		;;
	esac

	if [[ "$cur" == -* ]]; then
		cc=$( $1 -print-prog-name=$backend )
		# sink stderr:
		# for C/C++/ObjectiveC it's useless
		# for FORTRAN/Java it's an error
		COMPREPLY=( $( $cc --help 2>/dev/null | tr '\t' ' ' | \
			       sed -e '/^  *-/!d' -e 's/ *-\([^ ]*\).*/-\1/' | \
			       grep ^$cur | sort -u ) )
	else
		_filedir
	fi
}
[ "$have" ] && complete -o filenames -F _gcc gcc g++ c++ g77 gcj gpc
[ $OS = Linux ] && complete -o filenames -F _gcc cc

# Linux cardctl(8) completion
#
have cardctl &&
_cardctl()
{
	local cur
	COMPREPLY=()

	cur=${COMP_WORDS[COMP_CWORD]}

	if [ $COMP_CWORD -eq 1 ]; then
		COMPREPLY=( $( compgen -W 'status config ident suspend \
					   resume reset eject insert scheme' \
			       -- $cur ) )
	fi
}
[ "$have" ] && complete -F _cardctl cardctl

# Debian Linux dpkg(8) completion
#
have dpkg &&
_dpkg()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case "$prev" in 
	-i|--install|--unpack|-A|--record-avail)
		COMPREPLY=( $( compgen -f -X '!*.deb' -- $cur ) )
		return 0
		;;
   	-s|--status|-p|--print-avail|-L|--listfiles)
		COMPREPLY=( $( apt-cache pkgnames $cur) )
		return 0
		;;
	*)
		;;
	esac

	COMPREPLY=( $( compgen -W '-i --install --unpack -A --record-avail \
			--configure -r --remove --purge --get-selections \
			--set-selections --update-avail --merge-avail \
			--clear-avail  --command-fd --forget-old-unavail -s \
			--status -p --print-avail -L --listfiles -l --list \
			-S --search -C --audit --print-architecture \
			--print-gnu-build-architecture \
			--print-installation-architecture \
			--compare-versions --help --version --force-help -Dh \
			--debug=help --licence --admindir= --root= --instdir= \
			-O --selected-only -E --skip-same-version \
			-G --refuse-downgrade -B --auto-deconfigure \
			--no-debsig --no-act -D --debug= --status-fd \
			--ignore-depends= --abort-after' -- $cur ) )
}
[ "$have" ] && complete -F _dpkg -o filenames dpkg

# bash alias completion
#
_alias()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[$COMP_CWORD]};

	case "$COMP_LINE" in
	*[^=])
		COMPREPLY=( $( compgen -A alias -S '=' -- $cur ) )
		;;
        *=)
		COMPREPLY=( "$( alias ${cur%=} | \
			     sed -e 's/^alias '$cur'\(.*\)$/\1/' )" )
		;;
	esac
}
complete -F _alias alias

# bash export completion
#
_export()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[$COMP_CWORD]};

	case "$COMP_LINE" in
	*[^=])
		COMPREPLY=( $( compgen -v -S '=' -- $cur ) )
		;;
        *=)
		COMPREPLY=( $( eval echo $`echo ${cur%=}` ) )
		;;
    esac
}
complete -F _export export

# bash shell function completion
#
_function()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	if [ $COMP_CWORD -eq 1 ]; then
		COMPREPLY=( $(compgen -A function -- $cur ) )
	else
		COMPREPLY=( "() $( type -- ${COMP_WORDS[1]} | sed -e 1,2d )" )
	fi
}
complete -F _function function

_expand()
{
	[ "$cur" != "${cur%\\}" ] && cur="$cur"'\'
	
	# expand ~username type directory specifications
	if [[ "$cur" == \~*/* ]]; then
		eval cur=$cur
	elif [[ "$cur" == \~* ]]; then
		cur=${cur#\~}
		COMPREPLY=( $( compgen -P '~' -u $cur ) )
		return ${#COMPREPLY[@]}
	fi
}

_configure_func()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	[[ "$cur" != -* ]] && return 0

	COMPREPLY=( $( $1 --help | sed -ne 's/^ *\('$cur'[^ '$'\t'',[]\+\).*$/\1/p' ) )
}
complete -F _configure_func configure

_filedir()
{
	local IFS cur

	IFS=$'\t\n'
	cur=${COMP_WORDS[COMP_CWORD]}

	_expand || return 0

	if [ "$1" = -d ]; then
		COMPREPLY=( ${COMPREPLY[@]} $( compgen -d -- $cur ) )
		return 0
	fi
	COMPREPLY=( ${COMPREPLY[@]} $( eval compgen -f -- \"$cur\" ) )
}

_filedir_xspec()
{
	local IFS cur xspec

	IFS=$'\t\n'
	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	_expand || return 0

	# get first exclusion compspec that matches this command
	xspec=$( sed -ne '/ '${1##*/}'/{p;q;}' $BASH_COMPLETION )
	# prune to leave nothing but the -X spec
	xspec=${xspec#*-X }
	xspec=${xspec%% *}

	COMPREPLY=( $( eval compgen -f -X "$xspec" -- \"$cur\" ) \
		    $( compgen -d -- $cur ) )
}
list=( $( sed -ne '/^# START exclude/,/^# FINISH exclude/p' \
	  $BASH_COMPLETION | \
	# read exclusion compspecs
	(
	while read line
	do
		# ignore compspecs that are commented out
		if [ "${line#\#}" != "$line" ]; then continue; fi
		line=${line%# START exclude*}
		line=${line%# FINISH exclude*}
		line=${line##*\'}
		list=( ${list[@]} $line )
	done
	echo ${list[@]}
	)
     ) )
# remove previous compspecs
if [ ${#list[@]} -gt 0 ]; then
    eval complete -r ${list[@]}
    # install new compspecs
    eval complete -F _filedir_xspec -o filenames ${list[@]}
fi
unset list[@]
    
# source user completion file
[ -f ~/.bash_completion ] && . ~/.bash_completion
unset -f have
unset OS RELEASE have