Ping sweep

#!/bin/bash
#Usage : bash file.sh 123.456.78
#Cari IP yang aktif 1-255

if [ -z "$1" ]; then
        echo ""
    echo "[*] Please enter a valid base IP"
        echo ""
    exit 0
fi

echo ""
echo "[*] Listing live IPs"
echo ""

for ip in $(seq 0 254); do
ping -c 1 $1.$ip | grep "bytes from" | cut -d " " -f4 | cut -d ":" -f1 >> sweep.txt&

done

# Printing from text file for clean output
cat sweep.txt
rm sweep.txt