add common commands as aliases

Got this idea from Riinu’s scripting diary. You can add/modify common commands as aliases in your .bashrc file if you are getting tired of typing them all the time

• open the file with

          vi /path/to/.bashrc #often in ~/.bashrc
          

• There should be a section within the file similar to this:

          # enable color support of ls and also add handy aliases
          if [ -x /usr/bin/dircolors ]; then
              test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"
              alias ls='ls -aoh --color=auto'
              alias qstat='qstat -u shearn'
              #alias dir='dir --color=auto'
              #alias vdir='vdir --color=auto'
  
              alias grep='grep --color=auto'
              alias fgrep='fgrep --color=auto'
              alias egrep='egrep --color=auto'
          fi
          

  Here I have added aliases for for qstat -u shearn (gives qstat user information after only typing qstat) and ls -aoh, where -a lists hidden files, -o is long format without group info and -h gives human readable file size information (eg gb instead of bytes).

• Something else I usually do is to colour the prompt. To do this, remove the hashtag # from the following line

          #force_color_prompt=yes
          

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