Postinstall script to finish setting up Malwarebytes AntiMalware for Mac

setup_mbam.sh

#!/bin/sh

declare -r mbam_helper="/Applications/Malwarebytes Anti-Malware.app/Contents/Library/LaunchServices/com.malwarebytes.HelperTool"
declare -r privtools=/Library/PrivilegedHelperTools
declare -r launchd_plist=/Library/LaunchDaemons/com.malwarebytes.HelperTool.plist

# install helper tool
if [ ! -d ${privtools} ]; then
	/bin/mkdir -p "${privtools}"
	/bin/chmod 1755 "${privtools}"
fi
/usr/bin/install -m 0544 -o root -g wheel "${mbam_helper}" ${privtools}

# generate and load the LaunchDaemon if it doesn't already exist
if [ ! -e "${launchd_plist}" ]; then
	declare -r pb=/usr/libexec/PlistBuddy
	${pb} -c 'Add :Label string com.malwarebytes.HelperTool' "${launchd_plist}"
	${pb} -c 'Add :MachServices dict' "${launchd_plist}"
	${pb} -c 'Add :MachServices:com.malwarebytes.HelperTool bool true' "${launchd_plist}"
	${pb} -c 'Add :Program string '${privtools}'/com.malwarebytes.HelperTool' "${launchd_plist}"
	${pb} -c 'Add :ProgramArguments array' "${launchd_plist}"
	${pb} -c 'Add :ProgramArguments:0 string '${privtools}'/com.malwarebytes.HelperTool' "${launchd_plist}"
	/bin/chmod 644 "${launchd_plist}"
	/usr/sbin/chown root:wheel "${launchd_plist}"
	/bin/launchctl load "${launchd_plist}"
fi