wdutil

Wireless Diagnostics command line utility.

Syntax
      wdutil [command]

Commands

   diagnose [-f outputDirectoryPath]
           Equivalent to running the Wireless Diagnostics application, without UI.
           The default outputDirectoryPath is /var/tmp.
           Requires sudo.

   info    Display all of the content included in the Wi-Fi Info utility view.

   log [{+|-} {dhcp|od|dns|eapol|wifi}]+
           Enable or disable logging for DHCP, OpenDirectory, DNS, EAPOL, and Wi-Fi
           Requires sudo.

   dump    Dump the temporary Wi-Fi log buffer to /tmp/wifi-XXXXXX.log

Examples

Run all diagnostic tests:

$ sudo wdutil diagnose

Gather information about the current wireless environment:

$ wdutil info

Enable DHCP and OpenDirectory logging:

$ sudo wdutil log +dhcp +od

Disable EAPOL logging:

$ sudo wdutil log -eapol

“Rumack: Can you fly this plane, and land it?
Ted Striker: Surely you can’t be serious.
Rumack: I am serious... and don’t call me Shirley” ~ Airplane the movie

Related macOS commands

Local man page: wdutil - Command line help page on your local machine.
airport - Configure network interface parameters.