Here is a set of commands I found using… There might be a lot of other useful commands.
Setting up a Git project
If you want to work with an existing project, clone it:
$ git clone <url> - for example: git clone https://greenido@github.com/greenido/html5-boilerplate.git
If you do not have an existing git project, create one:
$ cd project/ $ git init # initializes the repository $ git add . # add those 'unknown' files $ git commit # commit all changes, edit changelog entry $ git rm --cached <file>... # ridiculously complicated command to undo, in case you forgot .gitignore
Git will look for a file named .gitignore in the root of your repository which contains a set of shell patterns to ignore in file paths.
Branching and merging
$ git checkout -b linux-work # create a new branch named "linux-work" $ <make changes> $ git commit -a $ git checkout master # go back to master branch $ git merge linux-work # merge changesets from linux-work (Git >= 1.5) $ git pull . linux-work # merge changesets from linux-work (all Git versions)
Importing patches
$ git apply < ../p/foo.patch $ git commit -a
Exporting a patch
$ <make changes>
$ git commit -a -m "commit message"
$ git format-patch HEAD^ # creates 0001-commit-message.txt
# (HEAD^ means every patch since one revision before the
# tip of the branch, also known as HEAD)
Network support
# clone from the primary Git repo
$ git clone git@github.com:greenido/html5-boilerplate.git
$ cd git
# pushing changes to a remote repo with SSH
$ git push user@github.com:my-repository.git/
# fetch changes to a remote branch into a local branch
$ git fetch user@example.com:my-repository.git/ remote-branch:local-branch
# merge changes from a remote machine
bar$ git pull git://foo/repo.git/ branch
# Serve repository via git protocol
$ cd /my/repository/
$ touch .git/git-daemon-export-ok
$ git daemon # now others can fetch from git://your.machine/my/repository/.git/
# Set up a bare (= without working directory) repository (e.g. on a webserver)
$ mkdir my-repo.git
$ cd my-repo.git
$ git --bare init
$ chmod a+x hooks/post-update # this is needed for HTTP transport
# you need to populate this repository via push
Inspecting revisions
# inspect history visually
$ gitk # this opens a Tk window, and shows you how the revisions are connected
# inspect history
$ git log # this pipes a log of the current branch into your PAGER
$ git log -p # ditto, but append a patch after each commit message
# inspect a specific commit
$ git show HEAD # show commit info, diffstat and patch
# of the tip of the current branch
Referring to revisions
# by name $ git log v1.0.0 # show history leading up to tag "v1.0.0" $ git log master # show history of branch "master" # relative to a name $ git show master^ # show parent to last revision of master $ git show master~2 # show grand parent to tip of master $ git show master~3 # show great grand parent to tip of master (you get the idea) # by output of "git describe" $ git show v1.4.4-g730996f # you get this string by calling "git describe" # by hash (internally, all objects are identified by a hash) $ git show f665776185ad074b236c00751d666da7d1977dbe $ git show f665776 # a unique prefix is sufficient # tag a revision $ git tag v1.0.0 # make current HEAD known as "v1.0.0" $ git tag interesting v1.4.4-g730996f # tag a specific revision (not HEAD)
Comparing revisions
# diff between two branches $ git diff origin..master # pipes a diff into PAGER $ git diff origin..master > my.patch # pipes a diff into my.patch # get diffstat of uncommitted work $ git diff --stat HEAD
Last But Not…
I recommend this quick good GIT course. Feel free to check around: https://github.com/greenido
Other Resources
* Simple and contain most of the basic commands you need: http://rogerdudler.github.io/git-guide/
* A ‘Game’ that will teach you Git: http://pcottle.github.io/learnGitBranching/
