Git installation by default does not include all the man pages.
So if you try to look for help on git commands like “git help commit”, you may see and error like this: “No manual entry for git-commit”.
It is strange to see a popular tool like git does not including man pages by default; however, following are the steps to download and install the man pages.
http://git-core.googlecode.com/files/git-manpages-[GIT_VERSION_NO].tar.gz > git-manpages-[GIT_VERSION_NO].tar.gz
tar xvj -C /usr/local/share/man -f git-manpages-[GIT_VERSION_NO].tar.gz
Done – Now you should be able to use all git manpages.