info-tmux-sessions: add script

polybar-scripts/info-tmux-sessions/README.md

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+# Script: info-tmux-sessions
+
+A simple script to show tmux sessions.
+
+![info-tmux-sessions](screenshots/1.png)
+![info-tmux-sessions](screenshots/2.png)
+
+
+## Module
+
+```ini
+[module/info-tmux-sessions]
+type = custom/script
+exec = ~/polybar-scripts/info-tmux-sessions.sh
+interval = 5
+```

polybar-scripts/info-tmux-sessions/info-tmux-sessions.sh

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+#! /bin/sh
+
+if sessionlist=$(tmux ls); then
+    printf "# "
+
+    echo "$sessionlist" | while read -r line; do
+        session=$(echo "$line" | cut -d ':' -f 1)
+
+        if echo "$line" | grep -q "(attached)"; then
+            status="(a)"
+        else
+            status=""
+        fi
+
+        printf "%s%s " "$session" "$status"
+    done
+
+    printf "\n"
+else
+    printf "# none\n"
+fi