How To Use Chmod Command In Linux?
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The chmod command is used to set the permissions of a file or directory on Linux and UNIX operating systems. To use the chmod command, you must specify the individual permissions for the user, group, and other categories, as well as the actual filename or folder name. In order to do this, you need to use a combination of numerical values and characters (such as +x or -r). For example, the following command sets read, write, and execute permissions for the owner of a file called ‘example.txt’:
chmod u=rwx example.txt