//第一步：安裝git
[root@localhost ~]# yum install git
 
//第二步：獲取ssh密鑰,郵箱是注冊(cè)github時(shí)使用的郵箱。（這里的郵箱跟剛才git官網(wǎng)上注冊(cè)的一致）
[root@localhost ~]# ssh-keygen -t rsa -C "xxxxxx@qq.com"
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):         //輸入保存key的文件名，這個(gè)隨便寫，可以寫了keyfilename，不寫按回車鍵它會(huì)默認(rèn)創(chuàng)建在 '/root/.ssh' 下。
Created directory '/root/.ssh'.
Enter passphrase (empty for no passphrase):                     //輸入密碼，就是你每次提交項(xiàng)目代碼時(shí)必須要輸入密碼，不想設(shè)置的話，直接按回車到下一步。
Enter same passphrase again:                                     //再次確認(rèn)密碼。
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:07gnUfb1vX9w9XcU6YZf67x+27usXahJossmu4zwdgS xxxxxx@qq.com
The key's randomart image is:
+---[RSA 2048]----+
|                .|
|               o |
|          o   + .|
|    E    = . o +=|
|     .  S . . o.B|
|      .  +    .+*|
|  .  .  o o . +++|
|   o.oo..+ o ooo*|
|   .o.+=+.  o.oOX|
+----[SHA256]-----+
[root@localhost ~]#     //到這里就成功啦~
[root@localhost ~]# git version        //驗(yàn)證一下是否安裝成功。
git version 1.8.3.1
[root@localhost ~]# cd /root/.ssh/        
[root@localhost .ssh]# ls
id_rsa  id_rsa.pub
//可以看到生成了一個(gè)私鑰（id_rsa）和公鑰（id_rsa.pub）
[root@localhost .ssh]# vi id_rsa.pub            //打開公鑰文件進(jìn)行復(fù)制。

ssh-add ~/.ssh/id_rsa

eval "$(ssh-agent -s)"

eval `ssh-agent`

ls ~/.ssh/

cat ~/.ssh/id_rsa.pub

git clone [url]
 
//這里的url為剛才保存的倉(cāng)庫(kù)的http鏈接

git add [要上傳的文件名]

git commit -m "日志信息"
 
//注意日志信息必須填寫

git push