DESCRIPTION
-----------
-'git' is both a program and a directory content tracker system.
-The program 'git' is just a wrapper to reach the core git programs
-(or a potty if you like, as it's not exactly porcelain but still
-brings your stuff to the plumbing).
+Git is a fast, scalable, distributed revision control system with an
+unusually rich command set that provides both high-level operations
+and full access to internals.
+
+See this link:tutorial.html[tutorial] to get started, then see
+link:everyday.html[Everyday Git] for a useful minimum set of commands, and
+"man git-commandname" for documentation of each command. CVS users may
+also want to read link:cvs-migration.html[CVS migration].
OPTIONS
-------
the current setting and then exit.
-NOT LEARNING CORE GIT COMMANDS
-------------------------------
-
-This manual is intended to give complete background information
-and internal workings of git, which may be too much for most
-people. The <<Discussion>> section below contains much useful
-definition and clarification - read that first.
-
-If you are interested in using git to manage (version control)
-projects, use link:tutorial.html[The Tutorial] to get you started,
-and then link:everyday.html[Everyday GIT] as a guide to the
-minimum set of commands you need to know for day-to-day work.
-Most likely, that will get you started, and you can go a long
-way without knowing the low level details too much.
-
-The link:core-tutorial.html[Core tutorial] document covers how things
-internally work.
-
-If you are migrating from CVS, link:cvs-migration.html[cvs
-migration] document may be helpful after you finish the
-tutorial.
+FURTHER DOCUMENTATION
+---------------------
-After you get the general feel from the tutorial and this
-overview page, you may want to take a look at the
-link:howto-index.html[howto] documents.
+See the references above to get started using git. The following is
+probably more detail than necessary for a first-time user.
+The <<Discussion,Discussion>> section below and the
+link:core-tutorial.html[Core tutorial] both provide introductions to the
+underlying git architecture.
-CORE GIT COMMANDS
------------------
+See also the link:howto-index.html[howto] documents for some useful
+examples.
-If you are writing your own Porcelain, you need to be familiar
-with most of the low level commands --- I suggest starting from
-gitlink:git-update-index[1] and gitlink:git-read-tree[1].
+GIT COMMANDS
+------------
+We divide git into high level ("porcelain") commands and low level
+("plumbing") commands.
-Commands Overview
------------------
-The git commands can helpfully be split into those that manipulate
-the repository, the index and the files in the working tree, those that
-interrogate and compare them, and those that moves objects and
-references between repositories.
+Low-level commands (plumbing)
+-----------------------------
-In addition, git itself comes with a spartan set of porcelain
-commands. They are usable but are not meant to compete with real
-Porcelains.
+Although git includes its
+own porcelain layer, its low-level commands are sufficient to support
+development of alternative porcelains. Developers of such porcelains
+might start by reading about gitlink:git-update-index[1] and
+gitlink:git-read-tree[1].
-There are also some ancillary programs that can be viewed as useful
-aids for using the core commands but which are unlikely to be used by
-SCMs layered over git.
+We divide the low-level commands into commands that manipulate objects (in
+the repository, index, and working tree), commands that interrogate and
+compare objects, and commands that move objects and references between
+repositories.
Manipulation commands
~~~~~~~~~~~~~~~~~~~~~
gitlink:git-mktag[1]::
Creates a tag object.
+gitlink:git-mktree[1]::
+ Build a tree-object from ls-tree formatted text.
+
gitlink:git-pack-objects[1]::
Creates a packed archive of objects.
what are asked for.
-Porcelain-ish Commands
-----------------------
+High-level commands (porcelain)
+-------------------------------
+
+We separate the porcelain commands into the main commands and some
+ancillary user utilities.
+
+Main porcelain commands
+~~~~~~~~~~~~~~~~~~~~~~~
gitlink:git-add[1]::
Add paths to the index.
gitlink:git-cherry-pick[1]::
Cherry-pick the effect of an existing commit.
+gitlink:git-clean[1]::
+ Remove untracked files from the working tree.
+
gitlink:git-clone[1]::
Clones a repository into a new directory.
gitlink:git-revert[1]::
Revert an existing commit.
+gitlink:git-rm[1]::
+ Remove files from the working tree and from the index.
+
gitlink:git-shortlog[1]::
Summarizes 'git log' output.
+gitlink:git-show[1]::
+ Show one commit log and its diff.
+
gitlink:git-show-branch[1]::
Show branches and their commits.
Ancillary Commands
-------------------
+~~~~~~~~~~~~~~~~~~
Manipulators:
gitlink:git-applypatch[1]::
gitlink:git-cvsexportcommit[1]::
Export a single commit to a CVS checkout.
+gitlink:git-cvsserver[1]::
+ A CVS server emulator for git.
+
gitlink:git-lost-found[1]::
Recover lost refs that luckily have not yet been pruned.
Interrogators:
+gitlink:git-annotate[1]::
+ Annotate file lines with commit info.
+
+gitlink:git-blame[1]::
+ Blame file lines on commits.
+
gitlink:git-check-ref-format[1]::
Make sure ref name is well formed.
gitlink:git-daemon[1]::
A really simple server for git repositories.
+gitlink:git-fmt-merge-msg[1]::
+ Produce a merge commit message.
+
gitlink:git-get-tar-commit-id[1]::
Extract commit ID from an archive created using git-tar-tree.
+gitlink:git-imap-send[1]::
+ Dump a mailbox from stdin into an imap folder.
+
gitlink:git-mailinfo[1]::
Extracts patch and authorship information from a single
e-mail message, optionally transliterating the commit
A stupid program to split UNIX mbox format mailbox into
individual pieces of e-mail.
+gitlink:git-merge-tree[1]::
+ Show three-way merge without touching index.
+
gitlink:git-patch-id[1]::
Compute unique ID for a patch.
a valid head 'name'
(i.e. the contents of `$GIT_DIR/refs/heads/<head>`).
-<snap>::
- a valid snapshot 'name'
- (i.e. the contents of `$GIT_DIR/refs/snap/<snap>`).
-
File/Directory Structure
------------------------
Please see link:repository-layout.html[repository layout] document.
+Read link:hooks.html[hooks] for more details about each hook.
+
Higher level SCMs may provide and manage additional information in the
`$GIT_DIR`.