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OProfile can profile an entire system or its parts, from interrupt routines or drivers, to user-space processes. It has low overhead. The most widely supported kernel mode of oprofile uses a system timer (See: Gathering profiling events). However, this mode is unable to measure kernel functions where interrupts are disabled.
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.
Ubuntu Single Sign On (also known as Ubuntu SSO, Launchpad Login Service) is an OpenID-based single sign-on service provided by Canonical to allow users to log into many websites. On June 21, 2013, Canonical announced that Ubuntu Single Sign On would be re-branded under Ubuntu One as part of consolidating Canonical's online services under the ...
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 .
The gecos field, or GECOS field, is a field in each record in the /etc/passwd file on Unix and similar operating systems.On UNIX, it is the 5th of 7 fields in a record. It is typically used to record general information about the account or its user(s) such as their real name and phone number.
Run-time variable data: Information about the running system since last boot, e.g., currently logged-in users and running daemons. Files under this directory must be either removed or truncated at the beginning of the boot process, but this is not necessary on systems that provide this directory as a temporary filesystem ( tmpfs ) (appeared in ...
A special system-wide environment variable found on Windows NT and its derivatives. Its value is the location of the current user's profile directory, in which is found that user's HKCU registry hive (NTUSER). Users can also use the %USERNAME% variable to determine the active users login identification.
A user can create multiple profiles for their account. Users can then set configuration options on a per-profile basis and assign a name to each profile. The available configuration options range from different fonts, different colors, emission of the terminal bell, the behavior of scrolling, and how the terminal handles compatibility with the ...