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List of tz database time zones. The tz database partitions the world into regions where local clocks all show the same time. This map was made by combining version 2023d with OpenStreetMap data, using open source software. [1] This is a list of time zones from release 2024a of the tz database. [2]
A who command that displays the names of users logged in was first implemented within Multics. [1] Later, it appeared in Version 1 Unix [2] and became part of the X/Open Portability Guide since issue 2 of 1987. It was inherited into the first version of POSIX.1 and the Single Unix Specification. [3]
Returns all records of all types known to the name server. If the name server does not have any information on the name, the request will be forwarded on. The records returned may not be complete. For example, if there is both an A and an MX for a name, but the name server has only the A record cached, only the A record will be returned.
Codd's twelve rules [1] are a set of thirteen rules ( numbered zero to twelve) proposed by Edgar F. Codd, a pioneer of the relational model for databases, designed to define what is required from a database management system in order for it to be considered relational, i.e., a relational database management system (RDBMS).
Category. : Database-related software for Linux. Software related to a database that runs on Linux kernel -based operating systems.
ISAM. Indexed Sequential Access Method ( ISAM) is a method for creating, maintaining, and manipulating computer files of data so that records can be retrieved sequentially or randomly by one or more keys. Indexes of key fields are maintained to achieve fast retrieval of required file records in indexed files.
The Linux Counter was started "for fun" with the goal to estimate the number of Linux users there are worldwide. The project invited users to register themselves as being a Linux user and then used various statistical heuristics to estimate the number of Linux users who did not register and the total number of Linux users worldwide.
The Network Information Service, or NIS (originally called Yellow Pages or YP ), is a client–server directory service protocol for distributing system configuration data such as user and host names between computers on a computer network. Sun Microsystems developed the NIS; the technology is licensed to virtually all other Unix vendors.