UNIX for Dummies Questions & Answers

I know I can run the cksum command for multiple files in a directory and send the results to a new file.

EX.)
# cd /usr
# cksum *_ex* > /tmp/cksumusr.txt

But I can't figure out how to run this command on multiple files in all directories on drive. Is it possible to do this, without having to manually type these commands for every directory on my drive, and how would I go about it.

If you could help me I would appreciate it.
Thanx

cksum `find /usr -name "*_ex*" -print` > /tmp/cksumusr.txt

The `find ...etc...` bit is executed first & supplies the file names for cksum to work on. The output is then redirected to /tmp/cksumusr.txt

If you wanted to do all filesystems - also added options to the find command to only check regular files which are executable.
(Note: the df -kl in Solaris shows only local filesystems - you may have to change this on your OS )

#!/bin/ksh
localfs=`df -kl |grep dsk | awk '{print $6}'`
cat /dev/null > /tmp/sum.junk
for i in $localfs; do
cksum `find $i -name "*_ex*" -type f -perm -o+x -print` >> /tmp/sum.junk
done