menu options that are not allowed based on the permissions stored for an item. File system permissions have been implemented many ways. Some notable examples...

before the permissions information. The file command reports file format information; even for regular files. The stat() system call reports Unix file type...

mode refers to the permissions and flags collectively. The command originated in AT&T Unix version 1 and was exclusive to Unix and Unix-like operating systems...

file system permissions. All files in a typical Unix filesystem have permissions set enabling different access to a file. Unix permissions permit different...

reports or sets the mask value that limits the file permissions for newly created files in many Unix and Unix-like file systems. A system call with the same...

read-write (no execution) permissions for the owner |│ ┌───────── read-only permissions for the group |│ │ ┌─────── read-only permissions for others |│ │ │ ┌──...

HP-UX was the first Unix to offer access-control lists for file access permissions as an alternative to the standard Unix permissions system.[citation needed]...

interactive command interpreter and command programming language developed for UNIX-like operating systems. Created in 1989 by Brian Fox for the GNU Project...

When a text file with a shebang is used as if it were an executable in a Unix-like operating system, the program loader mechanism parses the rest of the...

appeared in Version 1 Unix. It is among the few original Unix system calls to change, with Version 4's addition of group permissions and larger file size...

OpenSolaris, SINIX/Reliant UNIX, UnixWare and SCO OpenServer.[citation needed] VxFS was originally developed for AT&T's Unix System Laboratories. VxFS...

permissions) on a file or directory chown – change ownership on a file or directory chgrp – change group on a file or directory uucp – unix to unix copy...

mv is a Unix command that moves one or more files or directories from one place to another. If both filenames are on the same filesystem, this results...

setting permissions, but limited by the security model expectation that existing files permissions do not implicitly change. The setuid permission set on...

rm, short for remove, is a shell command on Unix and Unix-like operating systems used to remove files (which includes special files such as directories)...

Unix-like operating systems identify a user by a value called a user identifier, often abbreviated to user ID or UID. The UID, along with the group identifier...

system. The command su, including the Unix permissions system and the setuid system call, was part of Version 1 Unix. Encrypted passwords appeared in Version...

attributes File-system permissions Privilege (computing) Role-based access control (RBAC) E.g., File-system permissions, permission to perform specific action...

works by chunking the normal permissions up into very small pieces. When a process enters capsicum mode, it loses all permissions normally associated with...

In Unix and operating systems inspired by it, the file system is considered a central component of the operating system. It was also one of the first parts...

1-2024, which is part of the Single UNIX Specification (SUS). These commands are commonly implemented in Unix and Unix-like shells and many are available...

ext2, ext3, and ext4. It has metadata structure inspired by traditional Unix filesystem principles, and was designed by Rémy Card to overcome certain...

of Mac OS X Server 10.4, HFS Plus supported only the standard UNIX file system permissions; however, 10.4 introduced support for access control list–based...

January 18, 2038 (32-bit Unix time) Date resolution 1 s Forks Extended attributes File system permissions Unix permissions, ACLs and arbitrary security...

In Unix-like systems, multiple users can be put into groups. POSIX and conventional Unix file system permissions are organized into three classes, user...

latter will also reset the tmp directory to standard permissions). In Unix symbolic file system permission notation, the sticky bit is represented either by...

The Unix file system (UFS) is a family of file systems supported by many Unix and Unix-like operating systems. It is a distant descendant of the original...

system-wide changes. In Unix-like computer OSes (such as Linux), root is the conventional name of the user who has all rights or permissions (to all files and...

facility, and sshd is a daemon that serves incoming SSH connections. In a Unix environment, the parent process of a daemon is often, but not always, the...

The cron command-line utility is a job scheduler on Unix-like operating systems. Users who set up and maintain software environments use cron to schedule...