http://intelligenceonline.synergize.co/news/detecter-les-entrees-et-les-sorties
http://www.classthink.com/2014/01/12/raspberry-pi-vocal-intruder-warning-system-project/

#################################
# Speech Script by Dan Fountain #
# TalkToDanF@gmail.com #
#################################
INPUT=$*
STRINGNUM=0
ary=($INPUT)
#echo "---------------------------"
#echo "Speech Script by Dan Fountain"
#echo "TalkToDanF@gmail.com"
#echo "---------------------------"
for key in "${!ary[@]}"
do
SHORTTMP[$STRINGNUM]="${SHORTTMP[$STRINGNUM]} ${ary[$key]}"
LENGTH=$(echo ${#SHORTTMP[$STRINGNUM]})
#echo "word:$key, ${ary[$key]}"
#echo "adding to: $STRINGNUM"
if [[ "$LENGTH" -lt "100" ]]; then
#echo starting new line
SHORT[$STRINGNUM]=${SHORTTMP[$STRINGNUM]}
else
STRINGNUM=$(($STRINGNUM+1))
SHORTTMP[$STRINGNUM]="${ary[$key]}"
SHORT[$STRINGNUM]="${ary[$key]}"
fi
done
for key in "${!SHORT[@]}"
do
#echo "line: $key is: ${SHORT[$key]}"
#echo "Playing line: $(($key+1)) of $(($STRINGNUM+1))"
mpg123 -q "http://translate.google.com/translate_tts?tl=en&q=${SHORT[$key]}"
done