find . -name "*.ksh" -amin -10
will give you *.ksh files under the current directory tree that were accessed less than 10 minutes ago.
On a more general note, use
find . -name ".ksh" -amin n
Numeric arguments can be specified as
+n for greater than n,
-n for less than n,
n for exactly n.
and one of:
File was last accessed n minutes ago.
File’s status was last changed n minutes ago.
File’s data was last modified n minutes ago.
File was last accessed n*24 hours ago. When find figures out how many 24-hour periods ago the file was last
accessed, any fractional part is ignored, so to match -atime +1, a file has to have been accessed at least
two days ago.
File’s status was last changed n*24 hours ago.
File’s data was last modified n*24 hours ago.