files older than few hours

Shell Programming and Scripting
1

Hi All
I need to know the command which can be used to list the files which are 3 hours old so that it can be deleted.

2

first,you should know the time you want to compare is "modify time","access time" or "changed time".Command "find" gives some options to do things like that.

3

HI
Iam looking for the time when the file has been modified/created.
actually through one cron the files are getting created every min. so for every 3 hours i want to delete the old files which are being created in past 3 hurs

4 
find . -ctime +3h -exec echo {} \;

If that's what you want replace echo by del