setting up a global gitignore file

$ wget https://raw.githubusercontent.com/github/gitignore/master/Python.gitignore -O ~/Python.gitignore

$ git config --global core.excludesfile ~/Python.gitignore

References :
Setting up a global .gitignore for Python projects on Mac OS X - Guido van Oorschot

download subdirectory from GitHub

            https://github.com/Username/Repository/tree/master/subdirectory
                                                    |
                                                    v
svn checkout https://github.com/Username/Repository/trunk/subdirectory

References :
Cloning only a subdirectory with git - Stack Overflow

Git remove subtree

$ git filter-branch --index-filter 'git rm --cached --ignore-unmatch -rf dir1 dir2 dirN file1 file2 fileN' --prune-empty -f HEAD

References :

How to remove previously added git subtree and its history - Stack Overflow

git push to non bare repository

$ git config --bool receive.denyCurrentBranch false

$ vi .git/hooks/post-receive

# Update working tree after receiving pushed branch
echo "*****************************************************"
echo "Post-receive hook: updating remote working directory"
echo "*****************************************************"
cd ..

env -i git reset --hard

$ chmod +x .git/hooks/post-receive

References :
Quick 'n' Dirty Git Deployment

git subtree Working tree has modifications. Cannot add.

maybe something uncommit.

Git https verify error

fatal: unable to access 'https://github.com/pozgo/docker-snmpd.git/': Problem with the SSL CA cert (path? access rights?)

$ export GIT_SSL_NO_VERIFY=true

$ git clone https://github.com/pozgo/docker-snmpd.git/

References :
git - SSL certificate rejected trying to access GitHub over HTTPS behind firewall - Stack Overflow

常用 .gitignore 收集

github/gitignore - A collection of useful .gitignore templates
https://github.com/github/gitignore

git delete remote branch

$ git push origin --delete 

References :
github - How to delete a Git branch both locally and remotely? - Stack Overflow

git show remote repo

$ git remote show

origin
test

$ git config --get remote.origin.url
$ git config --get remote.test.url

git untrack file

$ git rm --cached filename

References :
untrack files in git | Source.kohlerville.com

git list remote branches

可以列出本地與遠端的 branch 對應

$ git branch -avv 

git pull remote branch

$ git checkout -b < new_branch > origin/< new_branch >
fatal: git checkout: updating paths is incompatible with switching branches/forcing
Did you intend to checkout ‘origin/‘ which can not be resolved as commit?’

$ git pull

References :
Wetware » Pull A Git Branch from Remote 

使用 git 產生diff 與接受 patch

產生差異檔

$ git diff  > patch
$ git diff  --cached > patch
$ git diff  branchname --cached > patch

套用補丁

$ git apply --check patch
$ git apply patch

延伸閱讀：git format-patch

git add empty directory

$ mkdir aaa
$ cd aaa
$ vi .gitignore

# Ignore everything in this directory
*
# Except this file
!.gitignore

References :
How do I add an empty directory to a Git repository? - Stack Overflow

Deploy a project using Git push

Server :

$ git init
$ git config receive.denyCurrentBranch ignore
$ mv post-update .git/hooks

Client :

$ git remote add prod ssh://git@deploy-server:22/var/www/myproject

References :
php - Deploy a project using Git push - Stack Overflow

git show one file all diffs

$ git log -p file

Reference :
version control - Git - show history of a file? - Stack Overflow
Git Tutorial

git list files in commit

$ git show --pretty="format:" --no-commit-id  --name-only d7196058

Reference :
List all the files for a commit in Git 

update all git submodule

$ git submodule foreach git pull

Reference :
Git - easy way pull latest of all submodules

remote: error: 'receive.denyCurrentBranch' configuration variable to 'refuse'.

在套件庫端設定

$ git config receive.denyCurrentBranch ignore

or

$ git config --global receive.denyCurrentBranch ignore

git clone / fetch branch

Clone :

$ git clone ssh://yanxen.no-ip.org/my_project.git --branch branch_name

 
Fetch :

$ cd my_project

$ git pull origin branch_name

Reference :
Pull A Git Branch from Remote