print(f"Scanning network...") for ip in network.hosts(): result = subprocess.run(["ping", "-c", "1", "-W", "1", str(ip)], capture_output=True, text=True) if result.returncode == 0: print(f"ip is alive")
#!/usr/bin/env python3 import ipaddress import subprocess import sys network = ipaddress.ip_network("192.168.1.0/24", strict=False)
Run it to discover active devices on your LAN. A good IP script should be idempotent — running it twice doesn’t break things. Always check before setting an IP:
if [ "$CURRENT_IP" != "$LAST_IP" ]; then echo "$(date) - IP changed from $LAST_IP to $CURRENT_IP" >> "$LOG_FILE" echo "$CURRENT_IP" > "$HOME/last_ip.txt" fi
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