occasionally I run a backup of my phpbb forum files from the Shell command line:

zip -r forum_backup  ~/public_html/forum/*

I'd like to add date elements to the file name, so that the zip file created is automatically formed as


or something similar



Try using the date command to generate the date for the filename. Something like this should work:

zip -r forum_backup_$(date +%Y%m%d) ~/public_html/forum/*

I took some liberty with the date format there. If you put the date first, then the month and day, it sorts nicely. You can re-arrange them if you want.

I hope this helps!