bash port scanner by light

#!/bin/bash
#by light, very bored. lol
if [ $# != 2 ]; then
echo "Usage: bash $0 <ip_list> <port>"
exit 0
fi
while IFS='' read -r line || [[ -n "$line" ]]; do
        if [[ $(nc -v -z $line $2 | grep succeeded) != "" ]]
        then
        echo "Host: $line | Port: $2" && echo $line >>open.txt #prints ip w/ open port and sends ip to an active ip list
        fi
done < "$1"
#educational purposes only ;)