Jeremy jeremyj

## Bash double IF condition
echo -n "Input: " && read IN
  IN=`echo $IN`
  if ! [[ $IN == "1" || $IN == "2" ]]; then
    echo "NO"
    exit
  else
    echo "SI"
  fi

## sed replace newline with space
sed ':a;N;$!ba;s/\n/ /g'
	echo -n "Input: " && read IN
	IN=`echo $IN`
	if ! [[ $IN == "1" \|\| $IN == "2" ]]; then
	echo "NO"
	exit
	else
	echo "SI"
	fi