Further help improvements: Show command aliases in 'hg help something', unless in quiet mode. Show short command description with 'hg help -q something'. Show global options in verbose mode of command help. State that Mercurial is a Distributed SCM.

#!/bin/sh

hg
hg -q
hg help
hg -q help
hg add -h
hg add --skjdfks
hg help diff
hg help status
hg -q help status
hg help foo
hg skjdfks

exit 0