[ArchTricks] Uninstall last x packages

pacrevert.sh

#!bin/bash

# ArchTricks pacrevert.sh
# By: HeavyPaws "Heavy H. Paws" <loopyd@lupinedream.com>
#
# About:
#   This script will remove the last n packages specified by its first argument
#
#   Packages are sorted by date.  If you ever fuck up and your system won't boot because of a bad group of packages, this
#   script is your life preserver.
#
# Dependencies required: expac: pacman -Sy expac 
# Shell required:  /bin/bash
#
# Usage Example:
#
#     pacrevert.sh 50
#     Will remove the last 50 installed packages
#
# WARNING: This command ignores dependencies.  If you don't know what the hell you're doing, I'd advise not
#          using this script at all!  Be a good sysadmin and accept responsibility for your own fuckups!  :-)
#
local ln
local lx
lx=$1
ln=$(expac -Ql --timefmt=%c '%l\t%n' | sort -n | awk -F ' ' '{print $6}' | tail -n$lx | tr '\n' ' ')
sudo pacman -Rdd $ln