How can I use an at command in a shell script?

Question

I am trying to use the Unix at command (for setting a job to run at a certain time) in a shell script. The time will be specified by user input using getopts and optarg which seem to be working fine, the problem is at. How do I write the at command into the script to run at a certain time based on input from the user?

Thanks, Ryan

score 20 · Accepted Answer · answered Mar 16 '13 at 20:14

20

I'd say

at now +10 minutes <<< "rm -rf /tmp/tobedeleted"

For multiline, consider a "HERE-doc"

at now +10 minutes <<ENDMARKER
rm -rf /tmp/tobedeleted
echo all done | mail -s 'completion notification' sysadmin@example.com
ENDMARKER

answered Mar 16 '13 at 20:14

sehe

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Thank you so much sehe. Super fast and helpful answer! it was the <<< and < – user2177896 Mar 16 '13 at 20:25
Excellent. Thank you. – DimiDak Mar 27 '19 at 12:47

How can I use an at command in a shell script?

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