Creating command Alias in Linux

Creating aliases is very easy. You can either enter them at the command line as you're working, or more likely, you'll put them in one of your startup files, like your .bashrc file, so they will be available every time you log in.

I created the l alias above by entering the following command into my .bashrc file:

alias l="ls -al"

As you can see, the syntax is very easy:

   1. Start with the alias command
   2. Then type the name of the alias you want to create
   3. Then an = sign, with no spaces on either side of the =
   4. Then type the command (or commands) you want your alias to execute when it is run. This can be a simple command, or can be a powerful combination of commands.

Sample aliases example

To get you going, here is a list of sample aliases I use all the time. I've pretty much just copied them here from my .bashrc file:

alias l="ls -al"
alias lm="ls -al|more"
alias html="cd /web/apache/htdocs/devdaily/html"
alias logs="cd /web/apache/htdocs/devdaily/logs"
alias qp="ps auxwww|more"
alias nu="who|wc -l"
alias aug="ls -al|grep Sep|grep -v 2010"