Add backdir and ~"ls" alias

README.txt

@@ -51,6 +51,7 @@ at this moment!
 * File manipulation functions
    * move "file1" "file2" -> Renames/moves file1 to file2 (mv)
    * chdir "/home/user" -> Changes directory to /home/user (cd)
+   * backdir -> Moves you back one directory (..)
    * showpath -> Returns current working directory (pwd alias)
    * showdir -> Lists current directory (ls alias)
    * showdir "/" -> lists '/'

src/functions.c

@@ -52,6 +52,16 @@ char *process_line(char *line)
     else if(strncmp("exit", tok_srch, 4) == 0)
         syn_error("ss:exit called");
 
+    // Change directory
+    else if(strncmp("backdir", tok_srch, 7) == 0)
+    {
+        int chdir_return = chdir("..");
+        if(chdir_return < 0)
+        {
+            syn_warn("ss:warn:backdir, failed to move directory location");
+        }
+    }
+
     // Move files using rename()
     else if(strncmp("move",tok_srch,4) == 0 || strncmp("mv", tok_srch, 2) == 0)
     {
@@ -947,7 +957,7 @@ char *process_line(char *line)
     }
 
     /* system execute function */
-    else if(strncmp("exec",tok_srch,4) == 0)
+    else if(strncmp("exec", tok_srch, 4) == 0 || strncmp("~", tok_srch, 1) == 0)
     {
         char *cmd_line;
         int return_val;