Mac OS 10.4 crontab has been depreciated but not ended. So its a good idea to know how to use its replacement under Mac OS. Welcome to
This will be a short guide on how to use launchd in a simple form to replace a crontab job. In my case I am automating the backup of my Plex server. You can see my previous article here
Launchd has a lot of other features. I will not look at them here.
You can checkout these other resources:
A basic example of a
plist file for
launchd. In this case we will use
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>Label</key> <string>my.example.backupplex</string> <key>ProgramArguments</key> <array> <string>/usr/bin/caffeinate</string> <string>/User/ACCOUNT/bin/plexbackup.sh</string> </array> <key>StartCalendarInterval</key> <dict> <key>Hour</key> <integer>6</integer> <key>Minute</key> <integer>2</integer> <key>Weekday</key> <integer>0</integer> </dict> </dict> </plist>
ACCOUNT with your login username.
You will need to create this file under your ~/Library/LaunchAgents/
If your system is always running and never shuts down. You will need to issue the command:
launchctl load -w ~/Library/LaunchAgents/plexback.plist
This will register your task with the scheduler that is used with launchd.