运行带有和不带输出的python脚本

Question

I have h problem, i need to run a backup script with no output to the screen at all the problem is i need to do it only if its running from the crontab in linux.

So if a user open the script it will load the UI menu

But from the crontab i want to add an argument so it will run without any output, something like:

07 00 * * *     /root/idan/python nw_backup.py -s

s for silent :)

From my search here i found how to run only one command with subprocess module

Thanks !

Answer 1

You can just dump all output (stdout and stderr) to /dev/null .

/root/idan/python nw_backup.py -s > /dev/null 2>&1

2>&1 basically means, dump stderr ( 2 ) same to where you dump stdout ( &1 ).