git is a distributed revision control and source code management (SCM) system with an emphasis on speed.

1. git

2. remote repository or
remote
https://github.com/SpongeUK/git-sandbox.githttps://github.com/SpongeUK/git-sandbox.git
README.md

3. git clone https://github.com/SpongeUK/git-sandbox.gitgit clone https://github.com/SpongeUK/git-sandbox.git
README.md
git clone
README.md
remotelocal

4. README.mdREADME.md
remotelocal HEAD
README.md
The last committed version
is called the HEAD
git tracks your changes
da39a3e

5. README.mdREADME.md
remotelocal HEAD
README.md
git addgit add index.htmlgit add index.html
index.html
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6. README.mdREADME.md
remotelocal HEAD
git commitgit commit -m “first page”git commit -m “first page”
index.html
README.md
index.html
a5c6870 da39a3e

7. README.mdREADME.md
remotelocal HEAD
index.html
README.md
index.html
a5c6870 da39a3e
Edits are tracked too...

8. README.mdREADME.md
remotelocal HEAD
index.html
README.md
index.html
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git checkoutgit checkout -- README.mdgit checkout -- README.md
checkout will get a specific
file from the HEAD, its like
an undo

9. README.md
remotelocal HEAD
git pushgit pushgit push
index.html index.html
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index.html
push sends all of your
commits to GitHUB
README.md
index.html
README.md
index.html

10. Do some work...
git add .git add .
git commit -m “stuff”git commit -m “stuff”
git pushgit push
The usual
workflow is to edit,
add, commit and
then push when
you ready...

11. git add .git add .
git commit -m “stuff”git commit -m “stuff”
git pushgit push
...that way you can
always go back to
a previous commit.Do some work...

12. git can merge two commits
even if they were made by different people
on different computers
in the same file
git mergegit merge

13. git can maintain parallel
branchesso you can experiment with changes and leave
the original unchanged
git branchgit branch

14. for more information...
http://git-scm.com/