Existing SHA1 digests verified, all found to be the same on the
machine holding the existing distfiles (morden). Existing SHA1
digests retained for now as an audit trail.
dsh is an implementation of a wrapper for executing multiple remote shell
(rsh/remsh/ssh) commands. rsh/remsh/ssh are wrappers for executing shell
(ksh/bash/zsh/tcsh/sh .. etc... ) on remote hosts.