git 學習 一 初始化和提交

建立git版本庫

$ mkdir gitstudy

$ cd gitstudy
$ git init
nitialized empty git repository in /users/fengxi/documents/gitstudy/.git/

$ vim

good git
git is a file version control system
:w readme.txt
:q

$ ls

readme.txt

$ git add readme.txt

$ git commit -m "create readme.txt file"
[master (root-commit) 69a629d] create readme.txt file
1 file changed, 2 insertions(+)
create mode 100644 readme.txt

$vim

:open readme.txt
good git
git is a file version control system
good good study //新新增的
:wq

$ git status

on branch master
changes not staged for commit:
(use "git add ..." to update what will be committed)
(use "git checkout -- ..." to discard changes in working directory)
modified:   readme.txt
no changes added to commit (use "git add" and/or "git commit -a")

$ git diff readme.txt

diff --git a/readme.txt b/readme.txt
index 058f007..7550558 100644
--- a/readme.txt
+++ b/readme.txt
@@ -1,2 +1,3 @@
good git
git is a file version control system
+good good study

$ git add readme.txt

$ git status

on branch master
changes to be committed:
(use "git reset head ..." to unstage)
modified:   readme.txt

提交

$ git commit -m "add good study"

[master 148ff70] add good study
1 file changed, 1 insertion(+)

$ git status

on branch master
nothing to commit, working directory clean

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