How do I make a shortcut command in terminal? I want to have ll as a shortcut for ls -ll. How can I add it to my Termianl application? I use iTerm as my primary Terminal application. I wish there was a single line command solution for it.
Add it to your .bash_profile by running nano ~/.bash_profile and adding

alias ll='ls -ll'


Control + X, then Y, then Enter to save the file.

Restart Terminal. ll should now be an alias for ls -ll. Use it like you would any other commands.