Hello is a greeting program. All reported bugs in previous test releases have been fixed.
Some bugs surely remain.
The GNU implementation of this classic program is brought to you by the efforts of several people, including Mike Haertel, David MacKenzie, Jan Brittenson, Roland McGrath, Charles Hannum, and The King. There is no man page, but the documentation is available via the 'info' command. Type 'info hello' to see it.