$ sudo apt-get install git git-core

$ git config --global user.name "abcd"$ git config --global user.email abcd@efgh.com

$ ssh-keygen -t rsa -C "abcd@efgh.com" //邮箱同上

　　4、提交密钥

vim /home/linx/.ssh/id_rsa.pub //复制里面的密钥

　　到github网页中登陆自己的账号，然后再account setting中，找到SSH KEY讲复制的密钥加入（需要再次输入github的密码）

　　5、检验是否链接上了github

$ ssh git@github.com//正常情况下，回显如下PTY allocation request failed on channel 0Hi plinx! You‘ve successfully authenticated, but GitHub does not provide shell access.Connection to github.com closed.

　　6、首次推送

$ mkdir tmp      //创建推送目录$ cd tmp         //进入推送目录    $ git init       //设置该目录为推送$ touch README   //生成readme$ git add README //加入修改列表$ git commit -m ‘first commit‘ //递交修改声明$ git remote add origin git@github.com:abcd/tmp.git //为远程Git更名为origin$ git push -u origin master //推送此次修改

　　问题一：

ERROR: Repository not found.

　　这个问题是因为在你推送的github账户中，并没有这个Repository。

　　解决方法：

　　1）检查自己的github中的Repository，检查自己创建的目录，必须要两者一致；

　　2）先git clone下github中的Repository，然后再进行更改，这样就一定一致了。

　　问题二：

Agent admitted failure to sign using the key. Permission denied (publickey)

　　这个问题是因为你的ssh key并没有加入到你想git的github账户的ssh key中，所以没有访问权限。

　　解决方法：

　　1）重新拷贝一份当前的~/.ssh/id_rsa.pub中的ssh key到github中添加;

　　2）先删除~/.ssh/in_rsa*文件，然后重新ssh-keygen一份sshkey来生成密钥，然后复制到github，接着ssh链接github来检验是否成功联通。

　　问题三：

//出现如下提示! [rejected] master -> master (non-fast-forward)error: failed to push some refs to ...

　　这个问题是因为，github中已经有了这个代码，不允许你覆盖它。

　　解决方法：

　　1）强制推送，一般不推荐！

$ git push -f

　　2）

$ git pull

　　然后将出现其他提示，具体意思是说branch与merge未指定，git无法选择要推送的分支。

　　可以通过修改 .git/config文件中的下列内容

[branch "master"]    remote = origin    merge = refs/heads/master

　　也可以直接命令行修改

$ git config branch.master.remote origin$ git config branch.master.merge ref/heads/master

　　目前了解到的也就这三个问题了。

　　之后就可以成功得推送了。

[root@localhost Jessica]# mkdir tmp[root@localhost Jessica]# cd tmp[root@localhost tmp]# git initInitialized empty Git repository in /root/Jessica/Jessica/tmp/.git/[root@localhost tmp]# touch README[root@localhost tmp]# git add README [root@localhost tmp]# vim README [root@localhost tmp]# vim myfile.txt[root@localhost tmp]# git add .[root@localhost tmp]# git commit -m ‘first commit‘[master (root-commit) 4fc0345] first commit 1 files changed, 1 insertions(+), 0 deletions(-) create mode 100644 README create mode 100644 myfile.txt[root@localhost tmp]# git remote add origin git@github.com:Jessicahust/tmp.git[root@localhost tmp]# git push -u origin masterERROR: Repository not found.fatal: The remote end hung up unexpectedly[root@localhost tmp]# git push -u origin masterTo git@github.com:Jessicahust/tmp.git ! [rejected]        master -> master (non-fast-forward)error: failed to push some refs to ‘git@github.com:Jessicahust/tmp.git‘To prevent you from losing history, non-fast-forward updates were rejectedMerge the remote changes before pushing again.  See the ‘Note aboutfast-forwards‘ section of ‘git push --help‘ for details.[root@localhost tmp]# git push -fCounting objects: 4, done.Delta compression using up to 2 threads.Compressing objects: 100% (2/2), done.Writing objects: 100% (4/4), 269 bytes, done.Total 4 (delta 0), reused 0 (delta 0)To git@github.com:Jessicahust/tmp.git + ae65e0f...4fc0345 master -> master (forced update)[root@localhost tmp]# git clone https://github.com/Jessicahust/tmp.gitInitialized empty Git repository in /root/Jessica/Jessica/tmp/tmp/.git/remote: Counting objects: 4, done.remote: Compressing objects: 100% (2/2), done.remote: Total 4 (delta 0), reused 4 (delta 0)Unpacking objects: 100% (4/4), done.[root@localhost tmp]# cd tmp/[root@localhost tmp]# ll总用量 4-rw-r--r--. 1 root root 12 12月 19 17:38 myfile.txt-rw-r--r--. 1 root root  0 12月 19 17:38 README[root@localhost tmp]# vim myfile.txt [root@localhost tmp]# git push -u origin mastererror: The requested URL returned error: 403 Forbidden while accessing https://github.com/Jessicahust/tmp.git/info/refsfatal: HTTP request failed[root@localhost tmp]# git remote rm origin[root@localhost tmp]# git push -u origin masterfatal: ‘origin‘ does not appear to be a git repositoryfatal: The remote end hung up unexpectedly[root@localhost tmp]# git push -u origin masterfatal: ‘origin‘ does not appear to be a git repositoryfatal: The remote end hung up unexpectedly[root@localhost tmp]# git commit -m ‘second commit‘# On branch master# Changed but not updated:#   (use "git add <file>..." to update what will be committed)#   (use "git checkout -- <file>..." to discard changes in working directory)##    modified:   myfile.txt#no changes added to commit (use "git add" and/or "git commit -a")[root@localhost tmp]# git remote add origin git@github.com:Jessicahust/tmp.git[root@localhost tmp]# git push -u origin masterBranch master set up to track remote branch master from origin.Everything up-to-date[root@localhost tmp]# vim myfile.txt [root@localhost tmp]# git add .[root@localhost tmp]# git commit -m ‘second commit‘[master 68d8831] second commit 1 files changed, 1 insertions(+), 1 deletions(-)[root@localhost tmp]# git push -u origin masterCounting objects: 5, done.Delta compression using up to 2 threads.Compressing objects: 100% (2/2), done.Writing objects: 100% (3/3), 295 bytes, done.Total 3 (delta 0), reused 0 (delta 0)To git@github.com:Jessicahust/tmp.git   4fc0345..68d8831  master -> masterBranch master set up to track remote branch master from origin.