leo@lein:~/Escritorio$ bash trans "i want to fly with you"
Quiero volar contigo
leo@lein:~/Escritorio$ 

function translate () {
    if [ $# = 0 ] || [ "$1" = "--help" ] || [ "$1" = "-h" ]; then
        echo -e "Fetch translation from google. Usage 'translate text' or 'translate world'"
        return
    fi
	local TEMP_FILE="/tmp/deleteme.$$"
	if [ $# -gt 1 ]; then
		local IS_WORD="false"
	else
		local IS_WORD="true"
	fi

    echo "********************************************************"
    echo " Choose the direction to translate '$*'"
    echo "********************************************************"
    echo " 0 - spanish to english"
    echo " 1 - english to spanish"
    echo " [Other] EXIT"
    echo "********************************************************"
    echo -n "Enter your menu choice: "
    read OPTION
	echo

    local SRC=en
    local DST=es
    case $OPTION in
        0)       SRC=es; DST=en;;
        1)       SRC=en; DST=es;;
        *)       echo "Exit"; return;;
    esac
    local LNG=`echo "$LANG" | cut -d '_' -f 1`
    local CHARSET=`echo $LANG | cut -d '.' -f 2` #usefull if charset is unicode

	if [ "$IS_WORD" = "true" ]; then
	    lynx -accept_all_cookies -dump -hiddenlinks=ignore -nonumbers -assume_charset=$CHARSET -display_charset=$CHARSET "http://www.google.com/dictionary?aq=f&langpair=${SRC}|${DST}&q=${1}&hl=$LNG"| grep -C 2 -A 5 -w "*" > /$TEMP_FILE

		if [ ! -s $TEMP_FILE ]; then
		    echo "No translation for '$1'"
		else
		    cat $TEMP_FILE
		fi
		rm -f $TEMP_FILE
	else
		wget -qO- "http://ajax.googleapis.com/ajax/services/language/translate?v=1.0&q=$@&langpair=${SRC}|${DST}" | sed 's/.*"translatedText":"\([^"]*\)".*}/\1\n/';
	fi
}