180. How does alias work in Unix?
We use alias in Unix to give a short name to a long command. We can even use it to combine multiple commands and give a short convenient
name.
E.g. alias c=’clear’
With this alias we just need to type c for running clear command.
In bash we store alias in .bash_profile file.
To get the list of all active alias in a shell we can run the alias command without any argument on command line.
% alias
alias h='history'
alias ki='kill -9'
alias l='last'