CODEWITHSUNDEEP
shellcroncron-task
nish
nish

Reputation: 7280

Cron job does not run

Following is the entry in the crontab:

[email protected]
45 14 * * * /home/user/simple.sh

I've also done chmod +x on the simple.sh But the crontab does not run, it doesn't even send an email.

pgrep cron shows an Id. I also tried bouncing crond. But no luck! Could someone please point out the mistake here

The simple.sh script is:

#! /bin/bash
echo hello

Thanks

Upvotes: 4

Views: 6264

Answers (3)

Marcos
Marcos

Reputation: 4930

Maybe there shouldn't be a space in line 1 of your .sh script:

#! /bin/bash

to

#!/bin/bash

Although I could see why it would still seem to work from when invoked in an interactive shell (# could merely comment out the rest of the line).

Still, I'd guess at worst it'd merely ignore that line and inherit cron's interpreter of /bin/sh

Upvotes: 0

Anshul Goyal
Anshul Goyal

Reputation: 77013

Since you are doing a echo within the cron job script, you need to capture its output somewhere.

Your shebang and file mode (using chmod +x) are all right, so those aren't the issue here and running without /bin/sh should work fine.

Try using the following to see the output in cron.log file (This runs every minute)

* * * * * /home/user/simple.sh >> /home/user/cron.log

Note that cron jobs run in separate subprocess shell, with reduced environment, so its output won't be visible on your terminal.

Regarding sending of email - you need to have some mail package (like postman, mutt etc) configured for the cron daemon to send out error mails.

Upvotes: 6

fedorqui
fedorqui

Reputation: 290175

Do not use relative paths, but absolute ones. Also, indicate the binary running the script, that is /bin/sh (or whatever coming from which sh):

45 14 * * * /bin/sh /path/to/script/simple.sh

Upvotes: 4

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