zsh

Updated 2024-03-24 (93d969e)

Functions

Example of a function with default arguments in zsh

function e() {
	if [ "$1" != "" ]
	then
		subl $1
	else
		subl .
fi
}

If you want the full path without the extension:

$ myfile=/path/to/story.txt
$ echo ${myfile:r}
/path/to/story
$ myfile=story.txt
$ echo ${myfile:r}
story

If you want just the file name minus the path:

$ myfile=/path/to/story.txt
$ echo ${myfile:t}
story.txt

Check this out you can combine those two symbols!

$ myfile=/path/to/story.txt
$ echo ${myfile:t:r}
story

Automatic ls after cd: A function is created to replace the cd command. Whenever cd is used to change directories, the function automatically runs ls to display the contents of the new directory.
```
function cd {
    builtin cd "$@" && ls
}
```
This method applies to bash and zsh, combining the cd and ls commands.
Using zsh Hooks for ls after cd: A more refined approach specific to zsh that uses hooks. A function named ls_after_cd is defined to run ls, and a zsh hook is added to execute this function every time the current working directory changes.
```
autoload -U add-zsh-hook

ls_after_cd() {
    ls
}

add-zsh-hook chpwd ls_after_cd
```
This approach is more aligned with zsh practices, allowing for the automatic listing of directory contents upon navigation without altering the original cd command.