To search a PDF on your Mac for a specific word or phrase, you can use the search function in the built-in Preview app.

Install nmap if you don't already have it on your Linux computer. Run "sudo apt-get install nmap" on Ubuntu, or "sudo dnf ...

The Disks app takes over some more challenging commands, such as fsck, mount, parted, chown, and dd. This app is a handy GUI that also prevents you from having to edit the fstab configuration file ...

Permissions have two parts: an action and a set of users. The three actions—read, write, and execute—define what can be done ...