No man page for rails command

Question

I can't access rails man page. How can I fix this? Thanks

nuno@Houdini:~/workspace/depot_a$ man rails
man: can't resolve /usr/share/man/man1/rails.1.gz: No such file or directory
No manual entry for rails

edit: But how come some people have a man page and others don't?

Answer 1

Rails isn't a traditional operating system package, and usually isn't installed through apt-get or yum, but through the rubygems packaging system that does not install manpages for documentation.

Answer 2

Rails is a ruby gem. Those don't have man pages. Type rails to get a brief list of commands.

Answer 3

For general help use either one of these:

rails -h
rails

For help on a specific command:

rails <cmd> -h

For example: rails new -h