Checking the MAC address can be achieved through terminal commands. In macOS or Linux systems, 1. Use ifconfig en0 | grep ether (macOS to check Wi-Fi interface); 2. Use ip link show and find link/ether (Linux); 3. List all interface names through ifconfig -l or ip link to determine the correct device name; in addition, you can also view it through a graphical interface, such as macOS to "System Settings" → "Network" to view details, or view the Linux desktop environment directly in network settings.

It is actually not difficult to find the MAC address, you can quickly find it with terminal commands. The commands of different systems vary slightly, but the overall idea is similar.

Common commands to view the address of the MAC

In macOS or Linux systems, you can use one of these commands after opening a terminal:

• ifconfig (The older system is still in use)
• ip (recommended for new version of Linux)
• networksetup (only for macOS)

For example, enter:

 ifconfig en0 | grep ether

Information similar to ether xx:xx:xx:xx:xx:xx will be displayed, and this string is your MAC address.

If it's Linux, you can try:

 ip link show

Find the string of numbers after link/ether in the output.

Device names corresponding to different network interfaces

You will find that the command uses parameters such as en0 or eth0 , which represent different network interfaces:

• en0 : Usually refers to Wi-Fi interface (macOS)
• eth0 : Generally a wired network card (Linux)
• lo0 : It is the local loopback address, not a physical device

If you are not sure which interface to check, you can use it first:

 ifconfig -l

Or on Linux:

 ip link

Lists all available interface names.

Other methods: Graphic interface and shortcuts

Although the topic is about terminal operation, if you just want to see the MAC address temporarily, you can also not type the command:

• On macOS: Go to "System Settings" → "Network" → Select the currently connected network → View details
• On Linux: Some desktop environments can directly see the MAC address in network settings

Of course, these methods are suitable for those who are not familiar with the terminal. When you really need to operate remotely or write scripts, you still have to rely on the command line.

Basically that's it. The MAC address is not hidden deeply, the key is to know how to select the right command based on the system.

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