Unix Shell Learning

1. Create aliases
• Know your shell first;
• # echo $SHELL
• If output = '/bin/csh', type 
• # echo ls   'ls -al' >> ~/.cshrc
• Else if o/p = '/bin/bash', type 
• # echo 'ls = 'ls -al' >> ~/.bashrc
• And then type
• # source ~/.cshrc
  
2.