When I commit something in Mercurial like this:
hg commit -m \"username question\"
I see this output:
No username found, using
you can specify your username on the command line directly if you want to using --config. eg
hg --config ui.username=frymaster -m "comment here" commit
in fact, you can override anything in your .hgrc with this command. just look at your .hgrc and note the format:
[section]
key=val
that translates directly to
hg --config section.key=val