[root@iZ25r8k6ifuZ git]# rpm -qa git
git-1.7.1-3.el6_4.1.x86_64

[root@iZ25r8k6ifuZ ~]# useradd tesla
[root@iZ25r8k6ifuZ ~]# passwd tesla

[root@iZ25r8k6ifuZ ~]# su tesla
[tesla@iZ25r8k6ifuZ root]$ cd ~
[tesla@iZ25r8k6ifuZ ~]$ mkdir .ssh
[tesla@iZ25r8k6ifuZ ~]$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/tesla/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/tesla/.ssh/id_rsa.
Your public key has been saved in /home/tesla/.ssh/id_rsa.pub.
The key fingerprint is:
13:bf:75:ba:67:7f:0e:a0:47:7a:fe:25:bc:81:85:c3 tesla@iZ25r8k6ifuZ
The key's randomart image is:
+--[ RSA 2048]----+
|     |
|     |
|  .  |
|   o . . |
|  S . E o |
|   . O |
|   + = = .|
|   + .o.|
|   o+oo+|
+-----------------+
[tesla@iZ25r8k6ifuZ ~]$ cd .ssh/
[tesla@iZ25r8k6ifuZ .ssh]$ cat id_rsa.pub >> ~/.ssh/authorized_keys
exit

[root@iZ25r8k6ifuZ ~]# visudo

root ALL=(ALL) ALL

tesla ALL=(ALL) ALL

[root@iZ25r8k6ifuZ ~]# mkdir /teslaRepo
[root@iZ25r8k6ifuZ ~]# cd /teslaRepo/
[root@iZ25r8k6ifuZ teslaRepo]# sudo mkdir teslaProject.git
[root@iZ25r8k6ifuZ teslaRepo]# chown tesla:tesla /teslaRepo/
[root@iZ25r8k6ifuZ teslaRepo]# chown -R tesla:git /teslaRepo/
[root@iZ25r8k6ifuZ teslaRepo]# cd teslaProject.git/
[root@iZ25r8k6ifuZ teslaProject.git]# sudo git --bare init
Initialized empty Git repository in /teslaRepo/teslaProject.git/

localhost:~ okay$ cd Desktop/git/
localhost:git okay$ mkdir teslaRepo
localhost:git okay$ cd teslaRepo/
localhost:teslaRepo okay$ git init
Initialized empty Git repository in /Users/okay/Desktop/git/teslaRepo/.git/
localhost:teslaRepo okay$ git remote add origin tesla@123.57.159.74:/teslaRepo/teslaProject.git

localhost:teslaRepo okay$ touch a.txt
localhost:teslaRepo okay$ git add a.txt
localhost:teslaRepo okay$ git commit -m "init commit"
[master (root-commit) d14cd3b] init commit
 1 file changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 a.txt

localhost:teslaRepo okay$ git push origin master
tesla@123.57.159.74's password:
Counting objects: 3, done.
Writing objects: 100% (3/3), 202 bytes | 0 bytes/s, done.
Total 3 (delta 0), reused 0 (delta 0)
To tesla@123.57.159.74:/teslaRepo/teslaProject.git
 * [new branch]  master -> master

localhost:git okay$ mkdir ttt
localhost:git okay$ cd ttt
localhost:ttt okay$ git clone tesla@123.57.159.74:/teslaRepo/teslaProject.git
Cloning into 'teslaProject'...
tesla@123.57.159.74's password:
remote: Counting objects: 3, done.
remote: Total 3 (delta 0), reused 0 (delta 0)
Receiving objects: 100% (3/3), done.
Checking connectivity... done.

cut -d: -f1 /etc/group

cut -d: -f1 /etc/passwd

git clone git@your_gitServer_ip:/home/gitrepo/sample.git

// 以master分支示范
git checkout master
git remote rm origin
git remote add origin git@your_gitServer_ip:/home/gitrepo/sample.git
git push -u origin master