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I'm trying to create a crontab on mac.

I've tried crontab -e which takes me to what appears to be an empty file opened with vim. I make no changes and simply press esc, :, w, then q to save and exit.

But when I try crontab -l I see:

crontab -l
crontab: no crontab for st

I tried exactly the same thing as root but I get the same outcome

MacBook-Pro:~ root# crontab -u st -e
crontab: no crontab for st - using an empty one
-- I save an exit vim as above --

crontab: no changes made to crontab
MacBook-Pro:~ root# crontab -u st -l
crontab: no crontab for st

I'm struggling to figure out why this isn't working as expected

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  • 1
    Check out this link about Crontab on macOS Nov 2 '20 at 22:27
  • @SwissCodeMen extremely useful, thanks. I have only one question, in 0,15,30,45 * * * * cd ~/.scripts && ./work.sh what is the purpose of ./ i.e. why not just work.sh ?
    – stevec
    Nov 2 '20 at 22:48
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    ECHO isn't a command - echo is. You can make it write out a test file with: echo $(date) >> /tmp/cron.test
    – Alex
    Nov 2 '20 at 23:26
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This will indeed open a new crontab in vim (presuming you don't already have one)

crontab -e

If it creates a new crontab for you, it will start empty, hit the space bar to add something to the crontab before saving and exiting

So TL;DR

  1. crontab -e creates a new crontab if you don't already have one
  2. If it's a new (empty) crontab, press i to 'insert' using vim, then press spacebar a few times so it's not empty
  3. Save and exit vim by pressing these keys (in order): esc, :, w, then q

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