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--- tech:unix:crontab [2020/07/03 13:33] – travis
+++ tech:unix:crontab [2020/07/30 00:06] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
 ====== Crontab ======
-{{howhard>1}}
-If you're from Windows World, crontab is Unix's Task Scheduler, only it's better.
-On macOS, you can install a crontab for your local user by running the following (using the nano editor)
+{{howhard>1}} If you're from Windows World, crontab is Unix's Task Scheduler, only it's better. You'll hear crontab referred to as cron and cronjob.
+===== Install Crontab =====
+On macOS (and this should work on any other *NIX), you can install a crontab for your local user by running the following (using the nano editor)
+<konsole> env EDITOR=nano crontab -e </konsole>
+On the first line, you can then enter the command you want to run and how long to run it.
+<code>
+* * * * *  command to execute
+│ │ │ │ │
+│ │ │ │ └─── day of week (0 - 6) (0 to 6 are Sunday to Saturday, or use names; 7 is Sunday, the same as 0)
+│ │ │ └──────── month (1 - 12)
+│ │ └───────────── day of month (1 - 31)
+│ └────────────────── hour (0 - 23)
+└─────────────────────── min (0 - 59)
+</code>
+Press CTRL+O and CTRL+X to save and exit.
+===== Remove Crontab =====
+If you need to remove a single entry, you can edit your crontab with ''env EDITOR=nano crontab -e'' which is standard editing mode.
+If you want to eliminate the crontab entirely, run the following:
 <konsole>
-env EDITOR=nano crontab -e
+crontab -r
 </konsole>
-On the first line, you can then enter the command you want to run and how long to run it.
-''Monospaced Text''

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