Put this script somewhere in your $PATH. Then you can type "git gud" for help with the last git command you used

git-gud

#!/bin/bash -i

last_command=$(fc -ln | grep -v 'git gud' | grep -E '^\s*git' | tail -n 1 | cut -d ' ' -f 3)

if [ -n "$last_command" ] ; then
	git help "$last_command"
	echo "(now ur gud at 'git $last_command')"
else
	echo "No recent git command found :("
fi