Linux/Unix Terms You Should Know: Part 2

In part one, we looked at some of the important terms a new system administrator should know when starting work on a Linux server. These next terms are equally important and will help you along the way as you begin to learn more about your server.

man – This command, short for manual, gives you access to documentation about any other command on your Linux server. For example, to learn about the command “ls”, simply type “man ls”, and it will display the command’s complete documentation, which you can scroll through and read.

permissions – Linux and Unix file systems have basic sets of permissions for all files and directories. Every file is owned by a user, and every file has a set of permissions determining which users can read, write, and/or execute them.

process – A process is a program or portion of a program that is currently running in the memory. A process can also spawn another process called a child process. For example, your Apache web server may be configured to spawn child processes for each unique access of its websites.

In part three of this series, we will explore even more in-depth terms that you should definitely know when diving into the world of dedicated servers.

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