Category: 1. Operating Systems (220-1002)

iwconfig/ifconfig The iwconfig command is used to view or modify the wireless network configuration (mode, rate, frequency/channel, etc.). The syntax is: iwconfig NAME_OF_WIRELESS_ADAPTER MODIFICATION For example, to change the name…

Mv The mv command is used to rename a file. The syntax looks like: mv SOURCE_FILE DESTINATION_FILE. For example, to rename a file called failed.txt to passed.txt, you would enter…

To start using command line commands in Linux you’ll run Terminal, XTerm, or similar application. If you need help with a command, you can type in the command man. This…

Multiple desktops/Mission Control With MacOS you can have multiple desktops running at once. Multiple desktops can have different open applications on them. For example, you can have email and Word…

Force Quit is when you want to stop an application from running. For example, when an application has become unresponsive, you’ll want to force quit it and restart. In MacOS,…

Mac OS Screen sharing is a built in feature of macOS. It’s integrated into the macOS finder such that you can list out the computers on your network and right…

Terminal in macOS and Linux provides for command line access to the operating system. The command line can be used to run scripts, manage files, and configure OS and application…

MacOS Disk Utility in MacOS is used to manage disk, images, and resolve drive issues. Disk Utility has a button called First Aid which can be used to verify and…

MacOS Within MacOS you can built a disk image in Disk Utility. This creates an Apple Disk Image (.dmg) file from which you’ll be able to restore from. The .dmg…