Arch Linux Pacman Mirror Updater

#!/bin/bash -e
#
#This script automatically updates the mirrorlist for Arch Linux based on the most responsive and up-to-date mirrors available

# 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"
  cp "$TMPFILE" "/etc/pacman.d/mirrorlist"
else
  mv "/etc/pacman.d/mirrorlist" "/etc/pacman.d/mirrorlist.bak" && echo "Successfully backed up mirrorlist!"
  cp "$TMPFILE" "/etc/pacman.d/mirrorlist" && echo "Successfully applied new mirrorlist!"
fi

exit