Eh, this is a line to a script, Useful as hell.

Say you want to have a cron job run all the time, and want each update to have its own folder, etc. Each labeled by the date.

backup_`date +"%Y-%m-%d"` > /backup_`date +"%Y-%m-%d_%Hh%Mm%Ss"`.log

## Guide for the use of the date function of bash. Case sensitive!!
## For use to perpend or append to a name.
## Use a % sign between each.
##
## Y = Year in 4-digit format (2006)
## M = Month number (06)
## d = Day of the month - 2 digits (05)
## T = Time in 24 hour format (17:45:52)
## H = Hour in 24-hour format (17)
## m = Minutes (35)
## S = Seconds (05)
##
## %Y%M%d%H%m%S = 20090209133424
## %Y-%M-%d_%Hh%mm%Ss = 2009-02-09_13h34m24s