The command mmh creates the initial setup for a first-time mmh user.
(Foranintroductiontothemmhsystem,seemmh-intro(7).)
First, the mmh directory $HOME/.mmh is created.
Then the user is asked to name a directory that will be designated as the user's mail storage. If this
directory does not exist, the user is asked if it should be created. Normally, this directory should be
under the user's home directory. The default is $HOME/Mail.
Afterwards, mmh writes an initial $HOME/.mmh/profile for the user, containing only the path to the mail
storage. If the profile is already present, the user is asked to edit it.
The -c option can be used to check whether or not mmh has been installed. This can be used by other
programs without having knowledge about the internals of mmh.