1. SSE2034: System Software Experiment 3 Spring 2016
Jinkyu Jeong
Computer Systems Laboratory
Sungkyunkwan University

2. git
Distributed version control system

3. git tutorial User setup Create repository Commit Multi version History
New
Clone
Commit
Multi version
Branch, checkout, etc.
History
Log, diff, etc.

4. User Setup git config --global user.name ”user name”
git config --global user. main.example.com

5. New Repository Create new repository mkdir ~/source_code
cd ~/source_code
git init
JeongHwanjinui-MacBook-Air:~ Hwanjin$ mkdir ~/source_code
JeongHwanjinui-MacBook-Air:~ Hwanjin$ cd source_code/
JeongHwanjinui-MacBook-Air:source_code Hwanjin$ git init
Initialized empty Git repository in /Users/Hwanjin/source_code/.git/
JeongHwanjinui-MacBook-Air:source_code Hwanjin$ ls -al
total 0
drwxr-xr-x 3 Hwanjin staff :20 .
drwxr-xr-x+ 36 Hwanjin staff :19 ..
drwxr-xr-x 10 Hwanjin staff :20 .git

6. Clone Repository Local clone Remote clone
git clone ~/source_code
Remote clone
git clone
Ex) git clone ong/emacs_config
CS258 S99

7. commit git add <file name> or * git commit –m “message” add mv
Add file contents to the index mv
Move or rename a file, a directory, or a symlink
reset
Reset current HEAD to the specified state rm
Remove files from the working tree and from the index
JeongHwanjinui-MacBook-Air:source_code Hwanjin$ git add *
JeongHwanjinui-MacBook-Air:source_code Hwanjin$ git commit -m "first commit"
[master (root-commit) 0c9021e] first commit

8. Pull & Push
Push your committed changes to the rem ote master repository
Pull changes pushed to remote master int o your local copy

9. Pull & Push git push <local> <remote> git pull
Ex) git push origin master
git pull

10. Branch
Grow, mark and tweak common history

11. Branch JeongHwanjinui-MacBook-Air:source_code Hwanjin$ git branch
* master
JeongHwanjinui-MacBook-Air:source_code Hwanjin$ git branch test
JeongHwanjinui-MacBook-Air:source_code Hwanjin$ git branch test1
test
test1
JeongHwanjinui-MacBook-Air:source_code Hwanjin$ git branch -d test1
Deleted branch test1 (was 0c9021e).
JeongHwanjinui-MacBook-Air:source_code Hwanjin$ git branch
* master
test

12. Checkout

13. Checkout JeongHwanjinui-MacBook-Air:source_code Hwanjin$ git branch
master
* test
JeongHwanjinui-MacBook-Air:source_code Hwanjin$ ls -al test_file
-rw-r--r-- 1 Hwanjin staff :44 test_file
JeongHwanjinui-MacBook-Air:source_code Hwanjin$ git checkout master
Switched to branch 'master'
-rw-r--r-- 1 Hwanjin staff :45 test_file
JeongHwanjinui-MacBook-Air:source_code Hwanjin$

14. History - log
git log
JeongHwanjinui-MacBook-Air:source_code Hwanjin$ git log
commit 6029ac48c e59bb3a5cfa47c493d2
Author: Hwanjin Jeong
Date: Tue May 17 17:44:
test
commit 0c9021ea35fa f6e203f436586ad92d28
Date: Tue May 17 17:27:
first commit

15. History - diff git diff <commit log id>
JeongHwanjinui-MacBook-Air:source_code Hwanjin$ git diff 0c9021ea35fa f6e203f436586ad92d28
diff --git a/test_file b/test_file
index e69de29..9daeafb
--- a/test_file
+++ b/test_file
-0,0 +1
+test

16. Reset git reset --hard <commit log id>
JeongHwanjinui-MacBook-Air:source_code Hwanjin$ ls -al test_file
-rw-r--r-- 1 Hwanjin staff :46 test_file
JeongHwanjinui-MacBook-Air:source_code Hwanjin$ git reset --hard 0c9021ea35fa f6e203f436586ad92d28
HEAD is now at 0c9021e first commit
-rw-r--r-- 1 Hwanjin staff :49 test_file

17. Github
world/#repository