Useful stuff for copying and pasting

• Aliases

  alias rm='rm -i'
  alias mv='mv -i'
  alias cp='cp -i'
  alias zap='rm -f'
  

• Bash functions

  lsh() {
      ls -lat "$@" | head
  }
  lsm() {
      ls -lat "$@" | less
  }
  

• Special variables in Bash functions

         "$0" "$@" "$1" 

• Making a script
  1. Make sure you have a ~/bin directory
  2. Make sure ~/bin directory is in your path

                .profile -  export PATH="$HOME/bin:$PATH"

  3. Create your script in ~/bin: emacs ~/bin/myscript.sh
  4. Make it excecutable

                 chmod +x emacs ~/bin/myscript.sh