![]() ![]() What is the chmod Command?Ĭhmod is a command that lets you change the permissions of a file or directory to all types of users. A good example is scripting files (Shell Scripts). Read and write are pretty are self-explanatory – they determine whether a user can read or write to a file.Ī file is said to be executable if it has a sequence of instructions to achieve something. Actions you can perform on a fileīefore we proceed further, I want to make sure you're clear about how the Read, Write, and Execute actions of a file work. Let’s deep dive into the chmod command □. We'll discuss the chmod command in this tutorial, and I'll get into the others in upcoming articles. There are three important commands you'll use when managing file permissions:Īmong these, chmod is one of the most important commands. You can secure your file or directory in every possible location of a file system. ![]() Linux allows users to set permissions at a very granular level. Users are classified under three broad categories: Normal users, Groups, and Others. Read, Write, and Execute are the three actions possible for every file. What are File Permissions in Linux?įile permissions control which actions can be performed by which users. You can grant or revoke permissions for every file and directory from your Linux Terminal. The Linux Terminal possesses some superpowers when it comes to handling file permissions. The first user may not wish the next user to view, edit, or delete their files, for example. Just as with other operating systems, multiple users can create user accounts and share the same machine running Linux OS.īut whenever different users share a system, problems of privacy can easily arise. ![]()
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