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Top Forums UNIX for Dummies Questions & Answers Can crontab execute binary files? Post 302098950 by Perderabo on Thursday 7th of December 2006 01:16:38 PM
Old 12-07-2006
Quote:
Originally Posted by Corona688
Good to know. Is it that they don't need it, or do they simply not support leaving processes behind?
Neither one. disown is simply a useful command invented by the bash developers and not available in other shells. I would like to see it in ksh. It's not clear why you think this stuff might be useful here though. There is no terminal involved with cron jobs unless the cron job opens one. So there is no controlling terminal to send a hup. ssh is different because a pty is involved. It would take an explicit kill -1 to send a hup to a cron job.

But closing 1 and 2 or redirecting them to /dev/null is a good idea, cron tend to gather these up and mail them to the user. People who write poor cron jobs then get a lot of mail which they never read and it fills up /var.
 

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atrm(1) 						      General Commands Manual							   atrm(1)

NAME
atrm - Removes jobs spooled by at SYNOPSIS
atrm [-a] [-f | -i] [job_number...] | [user...] The atrm command removes jobs that were created with the at command. OPTIONS
Removes all jobs belonging to the person invoking atrm. If invoked by a privileged user, all jobs on the queue are removed. Suppresses the printing of all information about the jobs being removed. Prompts before a job is removed; a response of y, or the locale's equivalent of y, causes the job to be removed. Obsolete version of -a. DESCRIPTION
If one or more job numbers is specified, atrm attempts to remove only those jobs. If one or more usernames is specified, all jobs belonging to those users are removed. This form of invoking atrm is useful only if you have superuser authority. EXAMPLES
To remove job number 62169200.a, created by user chinn, from the queue created by the at command, enter: atrm chinn.62169200.a Note that specifies an at job for sh. (.f specifies an at job for csh, and specifies an at job for ksh.) FILES
Main cron directory. List of allowed users. List of denied users. Spool area. Queue description file for at, batch, and cron. SEE ALSO
Commands: at(1), atq(1), cron(8) Files: queuedefs(4) atrm(1)
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