Git Aliases

.gitconfig

[alias]
# Status
	st  = status
	sti = status
	s   = status
	tst = status
	ts  = status
	str = status
	stt = status
# Branch
	br = branch
	bre = branch
	tbr = branch
	b = branch
	branches = branch
	remotebranches = branch -a
	mergedbranches = branch -a --merged
	hascommit = branch -a --contains
	removebranch = !sh -c 'git branch -D $1 && git push origin :$1' -
	cleanbranches = "!f() { git branch --merged ${1-master} | grep -v " ${1-master}$" | xargs -r git branch -d; }; f"
	### this alias may be replaced with simply »git cherry master -v«
	showcommitdifference = "!f() { git log --left-right --graph --cherry-pick --oneline ...${1-master}; }; f"
# Add
	a = add -p
	addpartial = add -p
	unstage = reset HEAD --
	unadd = reset HEAD --
	clearstage = reset HEAD
# Commit
	ci  = commit -v
	tcommit = commit
	comimt = commit
	uncommit = reset --soft HEAD~1
	amend = commit --amend
	ammend = commit --amend
	amendauthor = "!sh -c 'git commit --amend --author=\"$1\"' -"
	amenddate =  "!sh -c 'git commit --amend --date=\"$(date -R)\"'"
	commitcgl = commit -m '[TASK] CGL'
# Merge
	megre = merge
	emrge = merge
	merte = merge
# Checkout
	co = checkout
# Diff
	df = diff
	idff = diff
	doff = diff
	dif = diff
	worddiff = diff --word-diff
# Pull
	pullall = pull --all
	pullrebase = pull --rebase
# Push
	pushall = push --all
# Log
	logtree = log --graph --decorate --pretty=oneline --abbrev-commit
	lognice = log --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit --date=relative
	logme = log --author=USERNAME --pretty=format:'%h %cd %s' --date=short
	logshort = log -7 --oneline
	w = whatchanged
	fp = format-patch
	last = cat-file commit HEAD
	file-blame = !git ls-files | xargs -n1 -i{} git log -1 --pretty=format:\"%ci {}\" -- {}
	### search commit messages for certain word
	loggrep = "!f() { git log --grep=$1; }; f"
	k = !gitk
	g = !gitg
# Misc
	cleanup = gc
	remove = rm
	removeuntrackedfiles = !git clean -f -d
	contributors = shortlog -s --
	whois = "!sh -c 'git log -i -1 --pretty=\"format:%an <%ae>\n\" --author=\"$1\"' -"
	whatis = show -s --pretty='tformat:%h (%s, %ad)' --date=short
	versiontag = describe --always --long
	whatthecommit = !git commit -m \"`curl -s -L http://whatthecommit.com  | grep '<p>' | cut -c4-`\"
	showremote = remote -v show
	openremote = "open-remote"
	pruneremote = remote prune origin
	rebaselatest = rebase -i HEAD~9
	showroot = rev-parse --show-toplevel

If you want to pick just one of these aliases you may set it like this »git config --global alias.st "status"«

In Ubuntu you may just add these lines to the file ~/.config/git/config.