A simple shell script for removing OS X packages installed with .pkg files

rmpkg

#!/bin/sh

[ -n "$1" ] || { echo "usage: rmpkg package-id"; exit 1; }

pkgutil --pkg-info $1 || exit $?
printf "\n"

PKGVOL=`pkgutil --pkg-info $1 | sed -n 's/volume: \(.*\)/\1/p'`
PKGLOC=`pkgutil --pkg-info $1 | sed -n 's/location: \(.*\)/\1/p'`

pkgutil --only-files --files $1 | tr '\r\n' '\0' | xargs -0 -n 1 printf "%s%s/%s\n" $PKGVOL $PKGLOC
printf "\n"
read -p "Delete files? [Yes/No]: " ANSWER
printf "\n"
if [ $ANSWER = "Yes" ]; then
    pkgutil --only-files --files $1 | tr '\r\n' '\0' | xargs -0 -n 1 -I % sudo rm "$PKGVOL$PKGLOC/%"
fi

pkgutil --only-dirs --files $1 | sort -r | tr '\r\n' '\0' | xargs -0 -n 1 printf "%s%s/%s\n" $PKGVOL $PKGLOC
printf "\n"
read -p "Delete empty directories? [Yes/No]: " ANSWER
if [ $ANSWER = "Yes" ]; then
    pkgutil --only-dirs --files $1 | sort -r | tr '\r\n' '\0' | xargs -0 -n 1 -I % sudo rmdir "$PKGVOL$PKGLOC/%"
fi

printf "\n"
read -p "Forget package? [Yes/No]: " ANSWER
if [ $ANSWER = "Yes" ]; then
    sudo pkgutil --forget $1
fi