CODEWITHSUNDEEP
linuxshell
Bala
Bala

Reputation: 3

How to schedule cron job from shell script

I want to schedule a cron job in Linux by running a shell script.

The scenario is, I'm taking the time in HH:MM format in the shell script from the user and want to schedule a cron job from the shell script. I even want the cron job to be executed only once.

Thanks in advance...

Upvotes: 0

Views: 924

Answers (1)

GHugo
GHugo

Reputation: 2654

For the crontab, you can do something like this:

cur=$(crontab -l)
new="$mm $hh * * * your_command"

echo "$cur$new" | crontab -

For one-shot, crontab is not the good candidate. Use at (note: your_command must be a file, e.g., a bash script)

at -f your_command $hh:$mm

Upvotes: 1

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