Ever wanted to yell at your terminal? Now you can!

IHATEYOU.sh

#!/bin/bash

#Needed to provide alias expansion (so we can use those aliases after the script's finished)
shopt -s expand_aliases

while read x;
  do
    a=`echo $x | tr '[:lower:]' '[:upper:]'`;
    #Added because the script was picking up empty lines
    if [ "$a" != '' ]
    then
      alias $a=$x;
    fi
done < <(compgen -c)

youareprettyok.sh

#!/bin/bash
shopt -s expand_aliases

while read x;
  do
    a=`echo $x | tr '[:lower:]' '[:upper:]'`;
    if [ "$a" != '' ]
    then
      unalias $a;
    fi
done < <(compgen -c)