How To Change File Permissions On Linux?
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1. Using the chmod command: The chmod command is used to change the permissions of a file or directory in Linux. It can be used to set arbitrary permissions, or to set default permissions based on a numerical value for each of the three user types (owner, group, and all users).
2. Using the setfacl command: The setfacl command stands for “set file access control list”, and it can be used to set extended permissions on files and directories, such as setting ACLs (Access Control Lists) that grant or deny access to particular users or groups.
3. Using the umask command: The umask command is used to set the default file creation mode for new files and directories. The umask command is used to define the initial permissions that will be applied when a new file or directory is created.