http://www.liaoxuefeng.com/wiki/0013739516305929606dd18361248578c67b8067c8c017b000/0013743858312764dca7ad6d0754f76aa562e3789478044000
第一步,我们将git 里面的readme.txt修改成: (是在创库直接修改)
Git is a distributed version control system. Git is free software.
第二步,使用git status查看
$ git status # On branch master # Changes not staged for commit: # (use "git add <file>..." to update what will be committed) # (use "git checkout -- <file>..." to discard changes in working directory) # # modified: readme.txt # no changes added to commit (use "git add" and/or "git commit -a")
上面一大堆是告诉我们，readme.txt被修改过了，但还没有准备提交的修改。
第三步,使用git diff 可以查看哪里修改了
$ git diff readme.txt diff --git a/readme.txt b/readme.txt index 46d49bf..9247db6 100644 --- a/readme.txt +++ b/readme.txt @@ -1,2 +1,2 @@ -Git is a version control system. +Git is a distributed version control system. Git is free software.git diff顾名思义就是查看difference，显示的格式正是Unix通用的diff格式，可以从上面的命令输出看到，我们在第一行添加了一个“distributed”单词。
第四步,提交修改后的文件,git add readme.txt
第五步,在git commit之前,使用git status 查看当前创库的状态
$ git status # On branch master # Changes to be committed: # (use "git reset HEAD <file>..." to unstage) # # modified: readme.txt #git status告诉我们，将要被提交的修改包括readme.txt，下一步，就可以放心地提交了：
第六步,放心提交
$ git commit -m "add distributed" [master ea34578] add distributed 1 file changed, 1 insertion(+), 1 deletion(-)
第七步,再次查看git状态
$ git status # On branch master nothing to commit (working directory clean)
Git告诉我们当前没有需要提交的修改，而且，工作目录是干净（working directory clean）的。