sudo_wrapper

#!/usr/bin/env bash
# above for documentation: you actually must source this file

# from "wilo108"'s comment on webupd8.org: http://disq.us/p/1hfd51

# Wrap sudo to handle aliases and functions
sudo () {
    local c o t parse

    # Parse sudo args
    OPTIND=1
    while getopts xVhlLvkKsHPSb:p:c:a:u: t; do
	if [ "$t" = x ]; then
	    parse=true
	else
	    o="$o -$t"
	    [ "$OPTARG" ] && o="$o $OPTARG"
	fi
    done
    shift $(( OPTIND - 1 ))

    # If no arguments are left, it's a simple call to sudo
    if [ $# -ge 1 ]; then
	c="$1";
	shift;
	case $(type -t "$c") in
	    "")
		echo No such command "$c"
		return 127
		;;
	    alias)
		c="$(type "$c"|sed "s/^.* to \`//;s/.$//")"
		;;
	    function)
		c=$(type "$c"|sed 1d)";\"$c\""
		;;
	    *)
		c="\"$c\""
		;;
	esac
	if [ -n "$parse" ]; then
	    # Quote the rest once, so it gets processed by bash.
	    # Done this way so variables can get expanded.
	    while [ -n "$1" ]; do
		c="$c \"$1\""
		shift
	    done
	else
	    # Otherwise, quote the arguments. The echo gets an extra
	    # space to prevent echo from parsing arguments like -n
	    # Note the lovely interactions between " and ' ;-)
	    while [ -n "$1" ]; do
		c="$c '$(echo " $1"|sed -e "s/^ //" -e "s/'/'\"'\"'/")'"
		shift
	    done
	fi
	# Run the command with verbose options
	#echo Executing sudo $o -- bash -x -v -c "$c" >&2
	command sudo "$o" bash -c "$c"
    else
	#echo sudo $o >&2
	command sudo "$o"
    fi
}