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Some Unix variants, such as AT&T UNIX System V Release 3.0, include the related setname program, used to change the values that uname reports.; The ver command found in operating systems such as DOS, OS/2 and Microsoft Windows is similar to the uname command.
Ubuntu releases are also given code names, using an adjective and an animal with the same first letter – an alliteration, e.g., "Dapper Drake".With the exception of the first two releases, code names are in alphabetical order, and except for the first three releases, the first letters are sequential, allowing a quick determination of which release is newer.
Ubuntu adopts dash as its default shell. 2008 () POSIX-2008 is released by the IEEE. "This standard defines a standard source level interface to the shell and utility functionality required by application programs, including shell scripts." [54] 2009 () February 20, 2009 (): Bash 4.0 is released [59] Its license is GPL-3.0-or-later.
Ubuntu is by far the most popular Linux distribution for running web servers; of the websites they analyse it is "used by 47.3% of all the websites who use Linux", [160] and Ubuntu alone powers more websites than Microsoft Windows, which powers 28.2% of all websites, or 39% of the share Unix has (which includes Linux and thus Ubuntu). All Linux ...
See comparison of Linux distributions for a detailed comparison. Linux distributions that have highly modified kernels — for example, real-time computing kernels — should be listed separately. There are also a wide variety of minor BSD operating systems, many of which can be found at comparison of BSD operating systems .
Snap is a software packaging and deployment system developed by Canonical for operating systems that use the Linux kernel and the systemd init system. The packages, called snaps, and the tool for using them, snapd, work across a range of Linux distributions [3] and allow upstream software developers to distribute their applications directly to users.
ext4 (fourth extended filesystem) is a journaling file system for Linux, developed as the successor to ext3.. ext4 was initially a series of backward-compatible extensions to ext3, many of them originally developed by Cluster File Systems for the Lustre file system between 2003 and 2006, meant to extend storage limits and add other performance improvements. [4]
Ubuntu Touch is an open-source mobile version of the Ubuntu operating system [145] originally developed in 2013 by Canonical Ltd. and continued by the non-profit UBports Foundation in 2017. [ 153 ] [ 154 ] Ubuntu Touch can run on a pure GNU/Linux base on phones with the required drivers, such as the Librem 5 [ 155 ] and the PinePhone . [ 156 ]