Add a sanity confirmation to sensitive commands

confirm

# with help from 
#  http://stackoverflow.com/questions/3231804/in-bash-how-to-add-are-you-sure-y-n-to-any-command-or-alias
# and 
#  http://stackoverflow.com/questions/1537673/how-do-i-forward-parameters-to-other-command-in-bash-script
 
function confirm( ) {
  #confirm with the user
  read -r -p "$* [y/n]: " response
	case "$response" in
	    [yY][eE][sS]|[yY]) 
          #if yes, then execute the passed parameters
          "$@"
          ;;
	    *)
          #Otherwise exit...
          echo "cancelled."
          ;;
	esac
}
 
 
# make sure it works properly
alias ls='confirm ls'
 
# protect my terminal from myself
alias kill='confirm kill'
alias pkill='confirm pkill'
#etcetera