Linux Basic File Permissions

Viewing Ownership and Permissions In Linux, each and every file is owned by a single user and a single group, and has its own access permissions. Let's look at how to view the ownership and permissions of a file. The most common way to view the permissions of a file is to use ls with the long listing option, e.g. ls -l myfile. If you want to view...

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Swap Memory Management

5.1. What is Swap Space? Swap space in Linux is used when the amount of physical memory (RAM) is full. If the system needs more memory resources and the RAM is full, inactive pages in memory are moved to the swap space. While swap space can help machines with a small amount of RAM, it should not be considered a replacement for more RAM. Swap space is located...

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