How to write a bash script to delete El Capitan Installer

I've been given the below plist which points to a bash script. The script is supposed to delete the installer (El capitan.app) after it has been downloaded to prevent people from upgrading to it. It is not working and I am not sure what needs changing/tweaking, if anything, to the script. It fails to delete the downloaded installer. I have placed the script in the location /usr/local/bin, filename blockelcapitan.sh and can also confirm that the launch dameon (stored in /Library/LaunchDaemons) is loaded as confirmed by using the command: sudo launchctl list | grep net. which shows a result of: - 78 net.ORG.blockelcapitan I need help with the script, I have no idea if it is correct or what needs adding/removing/changing. #!/bin/bash Version=$(sw_vers | grep ProductVersion | tail -c 7 | cut -d . -f 2) if [[ $Version -ge 11 ]] then sudo launchctl unload /Library/LaunchDaemons/net.ORG.blockelcapitan.plist sudo rm -rf /Library/LaunchDaemons/net.ORG.blockelcapitan.plist sudo rm -rf /var/ORG/ElCapitan/ sudo rm -rf /var/db/receipts/net.ORG.pkg.BlockElCapitanLaunchDaemon.bom sudo rm -rf /var/db/receipts/net.ORG.pkg.BlockElCapitanLaunchDaemon.plist exit 0 fi rm -rf /Applications/Install\ OS\ X\ El\ Capitan.app/ osascript -e 'display dialog "OS X El Capitan is not allowed on ORG computers at this time." with title "ORG Technology Notice" buttons {"OK"} default button "OK" giving up after 30' Post-flight for installer PKG (you’ll want to use something like Packages for Mac to build a deployable .pkg): #!/bin/bash launchctl load -w /Library/LaunchDaemons/net.ORG.blockelcapitan.plist Version=$(sw_vers | grep ProductVersion | tail -c 7 | cut -d . -f 2) if [[ $Version -ge 11 ]] then sudo launchctl unload /Library/LaunchDaemons/net.ORG.blockelcapitan.plist sudo rm -rf /Library/LaunchDaemons/net.ORG.blockelcapitan.plist sudo rm -rf /var/ORG/ElCapitan/ sudo rm -rf /var/db/receipts/net.ORG.pkg.BlockElCapitanLaunchDaemon.bom sudo rm -rf /var/db/receipts/net.ORG.pkg.BlockElCapitanLaunchDaemon.plist exit 0 fi Here is the actual launchdaemon itself: Label net.ORG.blockelcapitan ProgramArguments /usr/local/bin/blockelcapitan.sh KeepAlive PathState /Applications/Install OS X El Capitan.app/ OnDemand