Generate Show Library LaunchAgent - inspired by https://github.com/rtrouton/rtrouton_scripts/blob/master/rtrouton_scripts/lion_show_user_library/com.company.show_library.plist

showLibrary.sh

#!/bin/bash
# This code generates a launchAgent that will unhide the Library
declare -xr cat="/bin/cat"
declare -xr defaults="/usr/bin/defaults"
declare -xr chown="/usr/sbin/chown"
declare -xr chmod="/bin/chmod"
declare -xr plutil="/usr/bin/plutil"

declare -x IDENT_KEY="com.github.acidprime.showLibrary"
declare -x LAUNCH_AGENT="/Library/LaunchAgents/$IDENT_KEY.plist"
declare -xa PROGRAM_ARGS=(/bin/bash -c '/usr/bin/chflags nohidden /Users/$USER/Library')

$defaults write "${LAUNCH_AGENT%%.plist}" Label "${IDENT_KEY:?}"
$defaults write "${LAUNCH_AGENT%%.plist}" ProgramArguments -array "${PROGRAM_ARGS[@]}"
$defaults write "${LAUNCH_AGENT%%.plist}" RunAtLoad -bool YES

$plutil -convert xml1 "${LAUNCH_AGENT:?}"

$chown 0:0 "${LAUNCH_AGENT:?}"
$chmod 744 "${LAUNCH_AGENT:?}"

$cat "${LAUNCH_AGENT:?}"
$plutil "${LAUNCH_AGENT:?}"