gmargo@tesla 1368$ ls -l perl10.pl
-rw-r--r-- 1 gmargo gmargo 1150 Oct 16 21:43 perl10.pl
gmargo@tesla 1369$ cp perl10.pl perl10a.pl
gmargo@tesla 1370$ md5sum -b perl10.pl perl10a.pl
976ed3393d1e967b2d8b4432c92b1397 *perl10.pl
976ed3393d1e967b2d8b4432c92b1397 *perl10a.pl
gmargo@tesla 1371$ sha1sum -b perl10.pl perl10a.pl
1f62d2bcc8dcdf3f9ef0f3728f9f99c85eb21d81 *perl10.pl
1f62d2bcc8dcdf3f9ef0f3728f9f99c85eb21d81 *perl10a.pl