How to clear a file 1

[dcomit]

I'm running a script in a cron job which among other things, clears a file using dd. Problem is I can’t suppress the output from dd and I get an email every time the cron job runs.

Any solutions welcome.

Dave

 

[Mike042]

More information is required to be able to give you a specific solution, but here are a few suggestions:

You can force the output of any command (even in crontab) to "disappear" with:
/path/to/some_command > /dev/null 2>&1

To clear a file, try:
cp /dev/null /path/to/some_file
or
mv /path/to/some_file /path/to/some_file_<date/time>
(then when more is written to the file, a new version is created)

I hope that helps.

Mike

 

[dcomit]

Mike,

many thanks,

Dave