Ubuntu crontab脚本不起作用

Question

I have 2 crontab commands.

The cron below works fine:

00 19 * * * cp -a /home/kmportal/VirtualBox\ VMs/cyn.in-disk1.vmdk /media/windowsshare

The cron below does not work after I add the time behind:

05 09 * * * cp -a /home/kmportal/VirtualBox\ VMs/cyn.in-disk1.vmdk /media/windowsshare/'date +%Y%m%d%H%M%S'cyn.in-disk1.vmdk

Please guide me to understand the command and how to solve.

Answer 1

You should enclose the date command with ` instead of ' and escape the % characters

Try this:

05 09 * * * cp -a /home/kmportal/VirtualBox\ VMs/cyn.in-disk1.vmdk /media/windowsshare/`date +\%Y\%m\%d\%H\%M\%S`cyn.in-disk1.vmdk