CODEWITHSUNDEEP
bashtextcron
user1709294
user1709294

Reputation: 1795

Bash Script with Crontab

I'm trying to setup a crontab I have this in my current job in the current user I'm logged into

* * * * * /CS/day/get_info.sh

get_info.sh is supposed to output a text file every minute and I suspected that it would output a file in the same directory as the script is located but it doesn't.

I've also checked the syslogs to see if I could figure this out.

(user) CMD (/CS/day/get_info.sh)
(user) MAIL (mailed 46 bytes of output but got status  0x0001#012)

Can someone explain to me why this is happening?

Thanks

Upvotes: 0

Views: 1808

Answers (3)

Meetai.com
Meetai.com

Reputation: 6928

On my case, I just had to install and configure an smtp client.

Upvotes: 0

A.H.
A.H.

Reputation: 66263

man cron tells you:

  When executing commands, any output is  mailed  to  the  owner  of  the
  crontab (or to the user named in the MAILTO environment variable in the
  crontab, if such exists).  The children copies of  cron  running  these
  processes  have their name coerced to uppercase, as will be seen in the
  syslog and ps output.

So you have to

  • cd into the appropriate directory yourself (cron will use $HOME)
  • redirect ANY output to a file of your choice

You can do both things in the crontab. But I recommend to do it in the first lines of the script itself:

#!/bin/bash
cd WHEREEVER_YOU_WANT
exec > YOUR_LOG_FILE 2&>1

Upvotes: 1

Olaf Dietsche
Olaf Dietsche

Reputation: 74058

The script is run in the home directory of the user and the file should be there as well. If you want it in the same directory as the script, either do a cd in your script or modify your crontab entry:

*/1 19-20 * * * cd /CS/day; /CS/day/get_info.sh

Another common problem with crontab entries is the environment. If the script works correctly in your terminal, try debugging it, when it is run from cron:

40 11 * * * bash -x /CS/day/get_info.sh >/tmp/get_info.sh.log 2>&1

Run it once only with current time, because otherwise you will overwrite your log file every minute.

Upvotes: 0

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