old file permissions:
-rw-rw-rw-  34 root    wheel         807 Jun 24  2009 instmodsh
-rw-rw-rw-  34 root    wheel         807 Jun 24  2009 perldoc

##</code><code>##

sudo chmod +x /usr/bin/instmodsh /usr/bin/perldoc

##</code><code>##

new file permissions:
-rwxrwxrwx  34 root    wheel         807 Jun 24  2009 perldoc
-rwxrwxrwx  34 root    wheel         807 Jun 24  2009 instmodsh