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  2. User identifier - Wikipedia

    en.wikipedia.org/wiki/User_identifier

    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 (GID) and other access control criteria, is used to determine which system resources a user can access.

  3. who (Unix) - Wikipedia

    en.wikipedia.org/wiki/Who_(Unix)

    The Single UNIX Specification (SUS) specifies that who should list information about accessible users. The XSI extension also specifies that the data of the username, terminal, login time, process ID, and time since last activity occurred on the terminal, furthermore, an alternate system database used for user information can be specified as an optional argument to who.

  4. toor (Unix) - Wikipedia

    en.wikipedia.org/wiki/Toor_(Unix)

    In a Unix-like system, each user has a user ID number, which is what the kernel uses to distinguish users and to manage user permissions. User ID #0 is reserved as the superuser account, and is given permission to do anything on the system. Users log in by username, not by ID number, and a user's choice of login shell is also managed by name.

  5. Find and remove unusual activity on your AOL account

    help.aol.com/articles/find-and-remove-unusual...

    Monitoring your recent login activity can help you find out if your account has been accessed by unauthorized users. Review your recent activity and revoke access to suspicious entries using the info below. Remove suspicious activity. From a desktop or mobile browser, sign in and visit the Recent activity page. Depending on how you access your ...

  6. nobody (username) - Wikipedia

    en.wikipedia.org/wiki/Nobody_(username)

    In many Unix variants, "nobody" is the conventional name of a user identifier which owns no files, is in no privileged groups, and has no abilities except those which every other user has. It is normally not enabled as a user account, i.e. has no home directory or login credentials assigned.

  7. Home directory - Wikipedia

    en.wikipedia.org/wiki/Home_directory

    A home directory is a file system directory on a multi-user operating system containing files for a given user of the system. The specifics of the home directory (such as its name and location) are defined by the operating system involved; for example, Linux / BSD systems use /home/ username or /usr/home/ username and Windows systems since Windows Vista use \Users\ username .

  8. Group identifier - Wikipedia

    en.wikipedia.org/wiki/Group_identifier

    In Unix-like systems, multiple users can be put into groups. POSIX and conventional Unix file system permissions are organized into three classes, user, group, and others.The use of groups allows additional abilities to be delegated in an organized fashion, such as access to disks, printers, and other peripherals.

  9. sudo - Wikipedia

    en.wikipedia.org/wiki/Sudo

    sudo (/ s uː d uː / [4]) is a program for Unix-like computer operating systems that enables users to run programs with the security privileges of another user, by default the superuser. [5] It originally stood for "superuser do", [ 6 ] as that was all it did, and this remains its most common usage; [ 7 ] however, the official Sudo project ...