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Schedule a script or command in x num hours, silently run in the background even if logged out

Terminal - Schedule a script or command in x num hours, silently run in the background even if logged out
echo "nohup command rm -rf /phpsessions 1>&2 &>/dev/null 1>&2 &>/dev/null&" | at now + 3 hours 1>&2 &>/dev/null
2009-08-18 07:31:17
User: AskApache
Functions: at echo
1
Schedule a script or command in x num hours, silently run in the background even if logged out

This is helpful for shell scripts, I use it in my custom php install script to schedule to delete the build files in 3 hours, as the php install script is completely automated and is made to run slow.

Does require at, which some environments without crontab still do have.

You can add as many commands to the at you want. Here's how I delete them in case the script gets killed. (trapped)

atq |awk '{print $1}'|xargs -iJ atrm J &>/dev/null

Alternatives

There are 5 alternatives - vote for the best!

Terminal - Alternatives
( ( sleep 2h; your-command your-args ) & )
2009-08-19 17:39:11
User: sitaram
Functions: sleep
25

doesn't require "at", change the "2h" to whatever you want... (deafult unit for sleep is seconds)

Know a better way?

If you can do better, submit your command here.

What others think

You don't need nohup for at-jobs, and you don't need do redirect STDIN and STDERR either (will be sent by mail to the user that starts the job)

Comment by verboEse 310 weeks and 2 days ago

What's up with the double redirection? So it seems like the shorter version would be:

echo "rm -rf /phpsessions" | at now + 3 hours
Comment by bwoodacre 310 weeks and 2 days ago

echo overload!

Comment by mpb 310 weeks and 1 day ago

echo overload! (attempt #2 :-)

<<< "rm -rf /phpsessions" at now + 3 hours
Comment by mpb 310 weeks and 1 day ago
echo "nohup rm -rf /garbage/ 1>&2 &>/dev/null 1>&2 &>/dev/null&" | at now + 3 hours 1>&2 &>/dev/null
Comment by AskApache 302 weeks and 5 days ago

echo "nohup rm -rf ~/g 1>&2 &>/dev/null 1>&2 &>/dev/null&" | at now + 1 minute

Comment by AskApache 302 weeks and 5 days ago

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