Ubuntu下学习git第二天--仓库操作

先对本机的readme.txt文件修改，比如添加一个“distribution”。用’git status’命令查看仓库当前状态，显示

On branch master
Changes not staged for commit:
(use "git add/rm <file>..." to update what will be committed)
(use "git checkout -- <file>..." to discard changes in working directory)

deleted:    file1.txt
deleted:    file2.txt

no changes added to commit (use "git add" and/or "git commit -a")

意思是上面的文件已经被修改过，但是还没提交到仓库，用

git add 文件名

提交到仓库。

这时还可以

git diff

查看做了哪些修改

$ git diff readme.txt
diff --git a/readme.txt b/readme.txt
index b0354bd..bf8ef1b 100644
--- a/readme.txt
+++ b/readme.txt
@@ -1,2 +1,2 @@
-Git is a version control system.
+Git is a distribution version control system.
Git is a free software

意思是往里添加了一个单词“distribution”。这时已经知道做了哪些修改，再提交就放心多了。和提交新文件相同，提交修改都是两步走。第一步

git add

是

然后使用

git add readme.txt

命令提交到仓库.没有任何显示就对了。我们可以

git status

查看当前仓库状态。

$ git status
On branch master
Changes to be committed:
(use "git reset HEAD <file>..." to unstage)

new file:   file1.txt
new file:   file2.txt
modified:   readme.txt

告诉我们需要提交的修改包括readme.txt文件，接着使用’git commit -m “add distrubution”’

$ git commit -m "add distributed"
[master 4ff027d] add distributed
1 file changed, 1 insertion(+), 1 deletion(-)

再使用git status命令查看仓库当前状态，显示

$ git status
On branch master
Changes not staged for commit:
(use "git add/rm <file>..." to update what will be committed)
(use "git checkout -- <file>..." to discard changes in working directory)

deleted:    file1.txt
deleted:    file2.txt

no changes added to commit (use "git add" and/or "git commit -a")

git告诉我们当前没有需要提交的修改。（使用git add and/or git commit -a命令提交）

最后总结：随时使用

git status

查看当前状态，是否有文件修改过，如果你要是不记得修改了那个文件，可以用

git diff

查看做了哪些修改。然后用

git add 文件名

和

git commit -m "修改说明"

提交修改和提交新文件。