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Groups > linux.debian.user > #227292
| From | Greg Wooledge <wooledg@eeg.ccf.org> |
|---|---|
| Newsgroups | linux.debian.user |
| Subject | Re: notify via virtual terminal available packages |
| Date | 2020-09-24 16:00 +0200 |
| Message-ID | <ASzWW-3NY-3@gated-at.bofh.it> (permalink) |
| References | <ASjS9-2t3-9@gated-at.bofh.it> <ASzNf-3Kv-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Thu, Sep 24, 2020 at 07:23:28AM -0600, Charles Curley wrote: > 5 3 * * * root sleep $( echo $((1 + RANDOM \% 1200)) ) ; /usr/bin/apt-get update > /dev/null && /usr/bin/apt-get -dy dist-upgrade > /dev/null RANDOM is a bashism, not available in sh, so that won't work in a crontab unless you've altered which shell cron is using to parse the crontab. If you *do* use bash to parse the line, then the $( echo ... ) bit is unnecessary. sleep $((1 + RANDOM \% 1200)) But the safer way is simply to assume that the crontab is being parsed by sh (because that's what is actually used by default), and move your bash-specific code to a script. Then call the script from the crontab.
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notify via virtual terminal available packages Pòl Hallen <deben@fuckaround.org> - 2020-09-23 22:50 +0200
Re: notify via virtual terminal available packages john doe <johndoe65534@mail.com> - 2020-09-24 10:40 +0200
Re: notify via virtual terminal available packages Charles Curley <charlescurley@charlescurley.com> - 2020-09-24 15:50 +0200
Re: notify via virtual terminal available packages Greg Wooledge <wooledg@eeg.ccf.org> - 2020-09-24 16:00 +0200
Re: notify via virtual terminal available packages Greg Wooledge <wooledg@eeg.ccf.org> - 2020-09-24 16:40 +0200
Re: notify via virtual terminal available packages Charles Curley <charlescurley@charlescurley.com> - 2020-09-24 16:50 +0200
Re: notify via virtual terminal available packages Greg Wooledge <wooledg@eeg.ccf.org> - 2020-09-24 17:00 +0200
Deterministic delays in POSIX shell scripts (Was: Re: notify via virtual terminal available packages) Andy Smith <andy@strugglers.net> - 2020-09-25 09:50 +0200
Re: Deterministic delays in POSIX shell scripts (Was: Re: notify via virtual terminal available packages) Greg Wooledge <wooledg@eeg.ccf.org> - 2020-09-25 13:50 +0200
Re: Deterministic delays in POSIX shell scripts (Was: Re: notify via virtual terminal available packages) Andy Smith <andy@strugglers.net> - 2020-09-25 14:30 +0200
Re: Deterministic delays in POSIX shell scripts (Was: Re: notify via virtual terminal available packages) David Wright <deblis@lionunicorn.co.uk> - 2020-09-26 04:50 +0200
Re: notify via virtual terminal available packages Charles Curley <charlescurley@charlescurley.com> - 2020-09-24 16:40 +0200
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