Find Detailed Wi-Fi Connection History from Command Line of Mac OS X
There are some situations where knowing exactly what wireless networks a Mac has connected to and when that connection was last established can be helpful.
We’ll demonstrate how to uncover a comprehensive listing of specifics about previously joined wi-fi networks on a Mac, which will include the last connection date and time (to the second!), if the network is hidden or not, the network SSID number, the networks SSID broadcast name, and the security type of each wifi network.