for Mac.

.gitconfig

[user]
	#name = 
	#email = 
	#signingkey = 
[core]
	#excludesfile = /Users/{userName}/.gitignore_global
[mergetool "sourcetree"]
	cmd = /usr/local/bin/meld $LOCAL $MERGED $REMOTE
	trustExitCode = true
[difftool "sourcetree"]
	cmd = /usr/local/bin/meld $LOCAL $REMOTE
	path =
[color]
	status = auto
	diff = auto
	branch = auto
	interactive = auto
	grep = auto
	ui = auto
[alias]
	########## basic commands ###########
	ad = add
	br = branch
	cm = commit
	co = checkout
	mg = merge
	pl = pull
	ps = push
	st = status
	########## custom commands ##########
	aa = add .
	# git alias || git alias [alias command]
	alias = !"f(){ if test -z $1; then loop=; for k in `git config --get-regexp ^alias\\. | sort | gsed -e 's/^alias\\.\\(\\S*\\).*/\\1/g'`; do printf $k; loop=${loop}1; if test ${#loop} -lt 5; then printf '\t'; else echo; loop=; fi; done; echo; exit; fi; git config --list | grep ^alias\\.$1= | gsed -e s/^alias\\.//; exit; }; f"
	d1 = diff HEAD~ # diff with 1 previous commit from the HEAD
	d2 = diff HEAD~~ # diff with 2 previous commit from the HEAD
	d3 = diff HEAD~~~ # diff with 3 previous commit from the HEAD
	d4 = diff HEAD~~~~ # diff with 4 previous commit from the HEAD
	d5 = diff HEAD~~~~~ # diff with 5 previous commit from the HEAD
	d6 = diff HEAD~~~~~~ # diff with 6 previous commit from the HEAD
	d7 = diff HEAD~~~~~~~ # diff with 7 previous commit from the HEAD
	d8 = diff HEAD~~~~~~~~ # diff with 8 previous commit from the HEAD
	d9 = diff HEAD~~~~~~~~~ # diff with 9 previous commit from the HEAD
	df = diff --color-words --word-diff-regex='\\w+|[^[:space:]]' #diff
	dl = branch -D # delete
	lg = log --graph --name-status --decorate # log
	lgg = log --graph --all --pretty=format:'%C(yellow)%h%Creset %C(magenta)%cd%Creset %C(cyan)%cn%Creset %s %Cred%d%Creset' # log graph
	rh = reset --hard --
[filter "lfs"]
	clean = git-lfs clean -- %f
	process = git-lfs filter-process
	required = true
	smudge = git-lfs smudge -- %f