Crontab.guru – cron schedule expression editor

Re:Crontab.guru – cron schedule expression editor by alxlaz on Friday October 04, 2019 @10:02AM (#21157778)

Huh. I never thought of that, although it was so damn obvious (I feel twice as stupid now that I realize I do a version of that on my machine, albeit not in order to send mail). I guess that's what I get for going all "Arch Wiki will you please just show me how you kids are doing it today and leave me be" on it.

But to be honest, not having to do <shell> -c <exec this or send me an email> ever again is one of the reasons why we're doing the whole systemd thing, and one of its big promises. If it comes to writing shell mantras again, I might as well use vixie cron (or one of its descendants) and benefit from 30+ years of bugfixes across more Unices than I can name, plus the acquired wisdom of the Interwebs.

Edit: plus... does this still allow you to get the other goodies, like being able to specify environment variables for a specific job?

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Re:Crontab.guru – cron schedule expression editor by yrro on Friday October 04, 2019 @10:09AM (#21157846)

Not sure I follow about the environment variables.

As for 'exec this or send me an email' -- I would also much prefer to see this be done by systemd itself. Fortunately bash's 'pipefail' feature plus bsd-mailx's '-s' flag make this reasonably quick and sane; I wouldn't even bother to attempt it if I were stuck with POSIX sh or if the mail command lacked the logic to not send the mail if stdin is empty.

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Re:Crontab.guru – cron schedule expression editor by alxlaz on Friday October 04, 2019 @01:20PM (#21159808)

> Not sure I follow about the environment variables.

I thought that environment variable passed via the Environment= options might not be correctly set, but it seems they are :-).

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