• hg lists basic commands, hg help lists all commands and hg help <command> shows the help for <command>
• Mercurial homepage with docu links

Cd into the root directory of your project and type hg init. This merely creates the subdir .hg which is the repository. The current dir becomes the working dir of the project.

Add all files to the project by hg add and hg commit

Source

Add this to the file $HOME/.hgrc:

[extensions]
hgext.graphlog =

Usage: hg glog [OPTIONS]

Source

Download and install colordiff from www.slackbuilds.org. Thed add the following to $HOME/.hgrc:

[extensions]
hgext.extdiff =
 
[extdiff]
cmd.cdiff = colordiff
opts.cdiff = -uprN

Usage: hg cdiff [...] [| less -R]

Sources: 1 2 3