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Config::Crontab's POD does have a long example for how to read/write users crontabs in it...
$c = new Config::Crontab; $c->owner('joe'); $c->read; ## reading joe's crontab $c->write; ##write out to joe's crontab... $c->owner('bob'); #change user to bob $c->write; #write same crontab to bob's crontab


It does look as though Config::Crontab handles restarting crontab and setting other user's crontabs via the system crontab command -- but looking though the code a few things you need to be aware of:

1: As you can see below the crontab command is not absolute -- you should make sure your PATH is set correctly before calling this write function -- or better yet modify Config::Crontab to use a setting to define where crontab exists on the filesystem (and maybe submit a patch).
my $crontab; if( my $owner = $self->owner ) { $crontab = `crontab -u $owner $tmpfile 2>&1`; } else { $crontab = `crontab $tmpfile 2>&1`; } chomp $crontab; unlink $tmpfile; if( $crontab || $? ) { $self->error($crontab); if( $self->strict ) { carp "Error writing crontab (crontab exited with status " . ($? >> 8) . "): " . $self->error; } return; } } return 1; }
2: The Module does not check if you are root before trying to update any users crontab -- if you are modding users crontabs other than your running UID, you should run as root and also verify the script is running as root before you call the writes.


In reply to Re: Getting Config::Crontab to Write File to Crontab Command by waswas-fng
in thread Getting Config::Crontab to Write File to Crontab Command by dperriero

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