update mirror list

mirror_list_update.sh

#!/bin/bash

# Define tmpfile
tmpfile=/tmp/mirrorlisttmp

# Determine architecture type
archtype=$(uname -m)

# Get latest mirror list and save to tmpfile 
wget -O $tmpfile "http://www.archlinux.org/mirrorlist/?country=United+States&protocol=ftp&protocol= \
http&ip_version=4&use_mirror_status=on" >/dev/null 2>&1

# Wrangle txt in saved file
sed -i -e "s/^#Server/Server/g" -e "s/\$arch/"$archtype"/g" $tmpfile 

# Backup and replace current mirrorlist file 
if [[ ! -f /etc/pacman.d/mirrorlist.orig ]]; then
  mv /etc/pacman.d/mirrorlist /etc/pacman.d/mirrorlist.orig && echo "Successfully backed up original mirrorlist!"
  cp $tmpfile /etc/pacman.d/mirrorlist && echo "Successfully applied new mirrorlist!"
else
  mv /etc/pacman.d/mirrorlist /etc/pacman.d/mirrorlist.bak && echo "Successfully backed up current mirrorlist!"
  cp $tmpfile /etc/pacman.d/mirrorlist && echo "Successfully applied new mirrorlist!"
fi

exit