Tips and Tricks

zsh shell

Fast cd

To cd seaming less into directories in a zsh:

Example

$ pwd
~
$ cf foo
$ pwd
~/path/to/working/dir/foo
$

Explanation

  1. Dirs in the file ~/.zshrc_dirs will be placed on the stack when the shell starts

  2. All directories which are visited by cd are pushed on the dir stack as well

  3. In this example cd is re-configured as a zsh function

  4. cd foo will:

    • execute builtin cd cmd.

    • When it fails it executes cf foo instead, and

    • will try to find a matching foo dir in dirs -v with grep -i foo (case independent).

    • If it finds one, it will cd into it.

    • If not it will print a final error message and exit.

Configuration

  • Create ~/.zshrc_dirs:

~/path/to/working/dir/foo
~/path/to/other/dir/bar

  • Add to ~/.zshrc:

setopt autopushd pushdignoredups pushdminus

alias d='dirs -v'

dirs $(< ~/.zshrc_dirs)

cd() {
  builtin cd $1 2> /dev/null || cf $1
}

cf() {
 new=$(dirs -v | grep -i $1 | head -1 | cut -f1)
 if [[ -n $new ]] ; then
   cd -$new
 else
   echo "cd error: dir $1 not found..."
 fi
}

zsh options

  • setops to list all set options

  • emulate -lLR zsh to list all avaiable options