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A Linux User Group or Linux Users' Group (LUG) or GNU/Linux User Group (GLUG) is a private, generally non-profit or not-for-profit organization that provides support and/or education for Linux users, particularly for inexperienced users. The term commonly refers to local groups that meet in person but is also used to refer to online support ...
A Linux User Group (LUG) is a meeting of people who like Linux and use it. Each country will usually have a national LUG which may administer the groups, offer free services etc. and it is also possible for groups to get sponsorships from various commercial organisations, SuSE is one example.
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.
NFSv4 was intended to help avoid numeric identifier collisions by identifying users (and groups) in protocol packets using textual “user@domain” names rather than integer numbers. However, as long as operating-system kernels and local file systems continue to use integer user identifiers, this comes at the expense of additional translation ...
This includes the passwd and group databases which store user information – hence getent is a common way to look up user details on Unix. Since getent uses the same name service as the system, getent will show all information, including that gained from network information sources such as LDAP .
The wheel group is a special user group used on some Unix systems, mostly BSD systems, [citation needed] to control access to the su [4] [5] or sudo command, which allows a user to masquerade as another user (usually the super user). [1] [2] [6] Debian and its derivatives create a group called sudo with purpose similar to that of a wheel group. [7]
Computer user groups may consist of members who primarily use a specific operating system, such as Linux. While many hackers use free and open source software, others use Macintosh, RISC OS, Windows and Amiga OS. There are also other user groups that concentrate on either Mac OS (Macintosh User Group or MUG) or Linux (Linux User Group or LUG).
Adamcon (Coleco Adam user group) Toronto PET Users Group (TPUG) SHARE; Macintosh User Groups in the UK; DUsers, the first Macintosh users group, based at Drexel University; IIUG International Informix Users Group; COMMON for Power Systems (IBM i, AS/400, iSeries, System i, AIX and Linux) users in North America.