Hi everyone, I have one question:

I would like to execute a shell script using crond per five minutes. my crontab file is like this

*/5 * * * * /root/cron_shell.sh > /dev/null
#

shell script is like this

cron_shell.sh

#!/bin/bash
date > /root/share/test
cat /root/share/test
/usr/bin/rsync -aze ssh --delete /root/share uname@xxx.xxx.xxx.xxx:/home/uname/

I got correct result for file test(for every five minutes, it is updated), but rsync could not be executed. However, I execute cron_shell.sh manually, it is OK. Thank you all for reading this question.

Often when this sort of thing happens (assuming not a permissions problem), it is due to the crond daemon running with only a very minimal ENVironment setup. Try in your script, giving full absolute paths to any binary or commands you are executing (cat, rsync, date, etc..) and see if that fixes it?

Thank you for your reply.
I tried absolute path, but no change. This is script.
And I use top to monitor the crond, when the script being executed, top shows sh <defunct>.
cron_shell.sh

#!/bin/bash
/bin/date > /root/share/test
/bin/cat /root/share/test
/usr/bin/rsync -aze ssh --delete /root/share uname@xxx.xxx.xxx.xxx:/home/uname/