iwconfig Command - Configure Wireless Network Interfaces

The iwconfig command is used to configure wireless network interfaces. It allows you to set parameters such as SSID, mode, frequency, and encryption for Wi-Fi devices.

Syntax

iwconfig [interface] [options]

Examples

iwconfig wlan0

sudo iwconfig wlan0 essid "MyWiFi"

sudo iwconfig wlan0 key s:password

Notes

• iwconfig is deprecated on many modern systems; use iw or nmcli instead.
• Requires root privileges for most operations.
• Only works with wireless interfaces supported by the kernel.