Siemens V4.0 manual Understanding Unix System Access Permissions, Permission Description

Troubleshooting Different System Access Permissions

3.Other — You can assign access permissions to files and directories that you own for all UNIX system users other than yourself and the users in your group. Depending on your needs, you can allow these other users to read or change your files and directories or you can prevent such access. Restricting access to others does not affect your own access to the files and directories.

When a user attempts to access a file or directory, access to the server is allowed or denied depending on the permissions assigned to that user.

11.3.1.5Understanding UNIX System Access Permissions

You can use the udir command to check the current UNIX system access permissions of any file or directory. The Modes column of the udir command shows the UNIX system access permissions for each file and directory. These access permissions are displayed as three sets of three access permissions each. The first set shows the user/owner access permissions. The second set shows the group access permissions. The third set shows the access permissions provided to other UNIX system users. Following are the access permissions abbreviations and their meanings:

Permission Description

r Permission to display or read the file or directory.

wPermission to modify or write to the file or to create or remove files in the directory.

xPermission to execute the file or move to the directory. Client application files do not need execute permission because they execute under the client computer’s operating system, not the UNIX system.

-The relevant permission is denied.

l Mandatory locking is enabled.

The following access permissions rarely appear in a display but are described here for completeness:

Permission	Description
s	Whenever a file with this permission is executed, regardless of who
	executes it, the invoked process takes on the identity of the file’s owner
	(or group) for the duration of the execution.
t	If space is available, a text file with this permission stays in swap space
	after execution. This permission speeds UNIX system program loading.

Product Manual U7613-J-Z815-6-76