" > /tmp/pastebin.sh.tmpx
while IFS= read -r line; do
    echo "$line" >> /tmp/pastebin.sh.tmpx;
    PLINES=$(($PLINES   1));
done

## exit if only whitspaces are input
if test -z "$(sed '1d;/^$/d' /tmp/pastebin.sh.tmpx)"; then
    echo -e 'usage :: `foo | pastebin.sh [-f]`'; exit;
fi

## exit when input less then 5 lines and -f option omitted
if [ $PLINES -lt "5" ] &