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How to Use the chmod Command: 2-Minute Linux Tips
If you’re a new Linux user, you’ve probably come across the Chmod command early on. Maybe someone told you to use “chmod 777” to move a file to a specific directory, and it worked! So what does the chmod command do, and what do the numbers mean?
This article covers everything you need to know about Linux file permissions. It’s important to know this in order to understand the chmod command and the numbers that correspond to certain access levels. Whether you’re using Ubuntu, Fedora, or a more exotic Linux distro, you’ll need to understand when it’s okay to set permissions to 777 using the CHMOD command, and when you should use a different setting.
In Linux, the operating system determines who has access to a particular file based on file permissions, ownership, and attributes. The system allows you, the owner or administrator, to set access restrictions for various files and folders. You can improve the security of your system by only granting access to users and programs that you trust.