debian-bash/uninstall.sh

#!/bin/bash

[ `id -u` -ne 0 ] && echo 'root privilege required' && exit 1

BASEDIR=$PWD
[ ! $BASEDIR == '/opt/debian-bash' ] && echo 'should be installed in /opt/debian-bash directory' && exit 1

ORIGINAL="ORIGINAL"
declare -a arr=(/etc/bash.bashrc /etc/inputrc /etc/vim/vimrc)

for i in "${arr[@]}"
do
    if [ -f "$i.$ORIGINAL" ]; then
        echo "uninstalling $i"
        rm "$i"
        mv "$i.$ORIGINAL" "$i"
    else
        echo "$i" not overriden
    fi
done