What does rws mean in linux

"rws" in Linux is a file permission mode, used to set the permissions of files. The permissions included in the rws permission mode are: 1. r, which allows reading the file content; 2. w, which allows modification Or delete the file content; 3. s, synchronize the file modifications to the storage medium.

The operating system of this tutorial: Linux5.18.14 system, Dell G3 computer.

In Linux, rws is a file permission mode used to set file permissions. It is the abbreviation of read-write-sync, which means setting read, write and synchronization permissions at the same time.

Specifically, the rws permission mode includes the following permissions:

• r (read): Allows reading the file content.

• w (write): Allows modification or deletion of file content.

• s (sync): Synchronize file modifications to the storage medium.

In the regular file permission mode, s usually refers to setting the "setuid" or "setgid" attribute. When s is set to the owner's permission bit, the executed file will inherit the owner's permissions, not the executor's permissions. When s is set to the group permission bit, the file being executed will inherit the group permissions. However, in the current context, rws probably refers to setting synchronization permissions on a file and does not involve special permissions.

To use rws permission mode to set the permissions of a file, you can use the chmod command, for example:

chmod 4000 file.txt

This will set the permissions of the file.txt file to rws------, That is, only the owner has read, write and sync permissions.

It should be noted that for general files, it is usually not recommended to use the rws permission mode directly. If you want to set specific permissions on a file, please select the appropriate permission mode according to your specific needs.

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