or, in the correct directory:
find -type f -a -exec rm {} \;
will work
Not as typed above: man find
Incorrect; it works here as written by me, 'tovrich
[herrold dhcp11 ~]$ mkdir temp
[herrold dhcp11 ~]$ cd temp
[herrold dhcp11 temp]$ for i in `seq 1 5` ; do touch sample$i ; done ; ls
sample1 sample2 sample3 sample4 sample5
[herrold dhcp11 temp]$ find -type f -a -exec rm {} \; ; ls
[herrold dhcp11 temp]$-R