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 Chmod Command in Linux (File Permissions) Chmod_Command_in_Linuxpng In Linux, access to the files is managed through the file permissions, attributes, and ownership This ensures that only authorized users and processes can access files and directories This tutorial covers how to use the chmod command to change the access permissions of chmod command or "change mode command", and as that name implies, the chmod command is used to change the mode of Unix/Linux files In other words it is used to define the way a file can be accessed Here in the above, the numbers in the brackets represents the numeric values for the corresponding permissions If you want to have a combination of permissions add the required numbers For example, for read and execute, it is 41=5 The syntax of chmod command is chmod options mode filename Linux Chmod Command Summary With Examples Youtube How to use chmod command in linux with examples