explaning scenario :
i have some config files under /opt .
In /opt file system confA ,confB,confC ....confZ these are the files .
if updated value of the file via console or tool then file value or configuration updated then backend that file be updated (time stamp & size) , file is running on Linux OS .
that files if update (changes time stamp and file size) in this scenarion ( auto check if any file available with latest time stamp then that file should need to take backup )
any command is there for above scenarion set in crontab entry to execute for backup files .
i hope explained query .
could you plese share the command .