Have you ever wanted to level up your command-line skills, but didn’t know where to start? Ever wanted to learn about all the command-line utilities available to you, but didn’t know where to look? I too had these problems, and I’m going to show you how I went about solving them.
First off, I wanted to get a list of all the commands available to me so that I could drill down on specific ones and
learn more about them. From what I’ve learned, the executables for available commands live in
/usr/bin and in
cd into these directories to see available commands and learn more about them.
$ cd /bin $ ls [ cat cp date df echo expr kill launchctl ln mkdir pax pwd rm sh stty tcsh unlink zsh bash chmod csh dd domainname ed hostname ksh link ls mv ps rcp rmdir sleep sync test wait4pat
One of the commands shown above is
ls, which lists the directory contents of the directory you’re in. To learn more
about this command, simply execute:
$ man ls
The executalbe for
man is located in
/usr/bin; it stands for “manual” and gives you documentation for a specific
man anytime you want to learn more about a specific command.
/usr/bin to see more commands
available to you.
Built-in Shell Commands
If you looked around for
cd and wondering where it’s located, you won’t find it in any of the directories described
above. This is because
cd is a built-in shell command. There are many other commands built into the shell you’re
using, and whether you’re using
zsh, you can view all the avialable commands and learn more about them by
### Bash ### $ man bash ### Zsh ### $ man zsh
Though you could simply google more information about specific commands, it’s important to use the command-line as much as possible if you want to level up!