Dear fellow Fedora users,
I want to know if it is possible to edit/append to crontab without using
crontab -e. I have about 10 machines running Fedora and at the end of the day
I have to manually power them off (shutdown). For a while, I started thinking
about it, well I can make a crontab to shutdown the machines at a certain time:
Edit crontab to shutdown machines from student account at 4:15 every
day(Monday-Friday) at school :) This way I don't have to shut them down myself
:)
$ which poweroff
If crontab is empty I want to add the following to it, so that the machines can
shutdown by themselves at 4:15 pm.
# min hour day-of-month month day-of-week command
15 16 * * 1-5 /usr/bin/poweroff >& /dev/null
I can manually type this for each of the 12 machines, but I thought it would be
more efficient to do something like
#!/bin/bash
#
crontab -e << "# min hour day-of-month month day-of-week command" \
"15 16 * * 1-5 /usr/bin/poweroff >& /dev/null " \
EOF >>
or something similar to apply it to all machines via a usb stick and avoid the
typing. How can I correct the above script to do the job, if there is way to do
it.
I have done it manually and it will work, but how can I do it with a script to
do it more efficiently?
Thank you in advance for your help/guidance/suggestions/advice.
Regards,
Antonio
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