I started to use Mercurial that is another source code management (SCM) tool such as Git.
As Git and Marcurial are distributed repository management tool for each other. The commands are similar 
So, let's try.
Try for commands!
Let me use below repository as my training.  BitBucket is supporting not only Git, but also Marcurial. It may be their unique strength for Github. The official document is useful too 
Create config file like
below editor line is to prevent an error "abort: edit failed: vi exited with status 1" after
hg commit on Mac.
Mac vi exits with exit status non-zero, and it causes the error for hg.
$ vi ~/.hgrc [ui] username = Your Name <firstname.lastname@example.org> editor = /usr/bin/vim
$ hg clone ssh://email@example.com/blais/snakefood $ cd snakefood
$ hg help Mercurial Distributed SCM list of commands: add add the specified files on the next commit addremove add all new files, delete all missing files annotate show changeset information by line for each file archive create an unversioned archive of a repository revision backout reverse effect of earlier changeset bisect subdivision search of changesets bookmarks create a new bookmark or list existing bookmarks branch set or show the current branch name branches list repository named branches bundle create a changegroup file cat output the current or given revision of files clone make a copy of an existing repository commit commit the specified files or all outstanding changes config show combined config settings from all hgrc files copy mark files as copied for the next commit diff diff repository (or selected files) export dump the header and diffs for one or more changesets files list tracked files forget forget the specified files on the next commit graft copy changes from other branches onto the current branch grep search for a pattern in specified files and revisions heads show branch heads help show help for a given topic or a help overview identify identify the working directory or specified revision import import an ordered set of patches incoming show new changesets found in source init create a new repository in the given directory log show revision history of entire repository or files manifest output the current or given revision of the project manifest merge merge another revision into working directory outgoing show changesets not found in the destination paths show aliases for remote repositories phase set or show the current phase name pull pull changes from the specified source push push changes to the specified destination recover roll back an interrupted transaction remove remove the specified files on the next commit rename rename files; equivalent of copy + remove resolve redo merges or set/view the merge status of files revert restore files to their checkout state root print the root (top) of the current working directory serve start stand-alone webserver status show changed files in the working directory summary summarize working directory state tag add one or more tags for the current or given revision tags list repository tags unbundle apply one or more changegroup files update update working directory (or switch revisions) verify verify the integrity of the repository version output version and copyright information additional help topics: config Configuration Files dates Date Formats diffs Diff Formats environment Environment Variables extensions Using Additional Features filesets Specifying File Sets glossary Glossary hgignore Syntax for Mercurial Ignore Files hgweb Configuring hgweb merge-tools Merge Tools multirevs Specifying Multiple Revisions patterns File Name Patterns phases Working with Phases revisions Specifying Single Revisions revsets Specifying Revision Sets scripting Using Mercurial from scripts and automation subrepos Subrepositories templating Template Usage urls URL Paths (use "hg help -v" to show built-in aliases and global options)
$ hg help command
$ hg command --help
Show branches. How do you see remote branches?
$ hg branches default 291:6d55510bd30b python3-via-six 289:d115ece5c850 python3 281:02b62c749462 configure-dpi 290:f271f333586e (inactive)
Show current branch.
$ hg branch default
It looks same with
$ hg pull
Check summary of current status
$ hg sum parent: 291:6d55510bd30b tip Merged in paavoap/snakefood/configure-dpi (pull request #3) branch: test-branch commit: 1 modified (new branch) update: (current)
$ hg log | less changeset: 291:6d55510bd30b tag: tip parent: 288:fa88cf9c3827 parent: 290:f271f333586e user: Martin Blais <firstname.lastname@example.org> date: Sat Jun 04 18:52:27 2016 -0400 summary: Merged in paavoap/snakefood/configure-dpi (pull request #3) changeset: 290:f271f333586e branch: configure-dpi parent: 288:fa88cf9c3827 user: Paavo Parkkinen <email@example.com> date: Mon May 30 16:10:32 2016 +0800 summary: Add 'dpi' command line option to sfood-graph. ...
$ vi README
$ hg status M README
README is tracked (registered). So, do not need to use
hg add FILE.
$ hg diff diff -r 6d55510bd30b README --- a/README Sat Jun 04 18:52:27 2016 -0400 +++ b/README Tue Dec 20 12:54:36 2016 +0100 @@ -137,3 +137,8 @@ ====== Martin Blais <firstname.lastname@example.org> + + +Test Subject +====== +Teet message.
$ hg commit
Check own commit.
$ hg log | less
Add remote repository
No such kind of command
git remote add.
Add new repo from file.
Added junaruga line after doing folk from bitbucket.org.
$ vi .hg/hgrc ... [paths] default = ssh://email@example.com/blais/snakefood junaruga = ssh://firstname.lastname@example.org/junaruga/snakefood ...
Check added repository URLs.
$ hg paths default = ssh://email@example.com/blais/snakefood junaruga = ssh://firstname.lastname@example.org/junaruga/snakefood
I referred this page. 
$ hg push junaruga --new-branch -r test-branch
After pushing, check pushed branch on your bitbuket.org repo page.