Re: running a crontab from command line, ad hoc

["Peter B. West" <pbwest@xxxxxxxxxxxxxx>]

You need a different tool.  Crontabs, by definition, specify tasks to 
runat certain times.  You can't run "this morning's" crontab this 
afternoon.  The crontabs are constantly monitored, and when a task 
becomes due, it's executed.

One approach is to edit the crontab, copying the "morning" line(s) and 
changing the time to this afternoon.  When the on-off task runs, re-edit 
the crontab to remove it.  Use crontab -e for this.

A more sensible approach is to use 'crontab -l' to list the tasks from 
the crontab, and then to use the 'at' command to schedule a one-off 
execution at a certain time.

Try man at

Peter

Timothy Stone wrote:
> List,
>
> I know this can be done, but it escapes me how to do it.
>
> I wanted to execute a user crontab this afternoon that normally runs 
> daily first thing in the morning. Nothing seems to work. And somehow 
> most manuals seem to live it unsaid, "you must innately know how to do 
> this."
>
> Tips?
>
> Thanks,
> Tim

--
Peter B. West <http://www.powerup.com.au/~pbwest/resume.html>


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