gem-man(1) – view a gem’s man page
gem man <GEM> gem man <SECTION> <GEM> gem man --system <GEM> gem man --latest <GEM> gem man --exact <GEM> gem man --all
gem man command can be used to display a man page for an
installed RubyGem. The man page must be included with the gem -
gem-man does no generation or magic.
For an introduction to man pages, see
man(1) (or type
man man in
gem install gem-man gem man gem-man
gem man expects to be passed the name of an installed gem. If there
are multiple man pages found for the gem, you will be asked which
you’d like to view. If only a single man page is found it will be
Man pages are any files whose extension is a single digit [0-9],
SECTION as the first argument narrows the search to man
pages matching the provided section. For example, if the “mustache”
man/mustache.5 the command
man 1 mustache will display
man/mustache.1 without asking if you’d
like to see
gem man’s default mode of operation is to open a man page for a
single gem or, if multiple man pages are found, ask which you’d like
to open. If there are any ambiguities as to which gem to use,
man will ask which you’d prefer.
You can specify gems or list available gems using a few options.
--system: Fall back to searching for system manuals. That is,
gem man -s macwill first look for a gem named
macwith a man page before looking for any system man pages named
gem man -s forkshould find the fork(2) manual, for instance.
--latest: If there are multiple versions of a gem, open the latest.
--version: Specify version of gem to man.
--exact: Only list exact matches.
--all: List all installed gems that have manuals.
gem help man to view the options at any time.
gem install gem-man
gem man mustache gem man 1 ronn gem man -a
For information on authoring man pages, see
gem install ronn gem man 7 ronn
If you want
man to find RubyGems, it’s this easy:
alias man="gem man -s"
man say man rails man 1 ronn man 2 fork
man(1) script to be in your path, executable, and to
accept a full path to a manual.
Requires Ruby and RubyGems 1.3.2 (or higher).
Please report other bugs at http://github.com/defunkt/gem-man/issues
- adamsanderson for open_gem
- rtomayko for ronn
gem-man is Copyright (C) 2010 Chris Wanstrath with parts from Adam Sanderson.