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  2. Comparison of operating system kernels - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_operating...

    A kernel is a component of a computer operating system. [1] A comparison of system kernels can provide insight into the design and architectural choices made by the developers of particular operating systems.

  3. List of Linux distributions - Wikipedia

    en.wikipedia.org/wiki/List_of_Linux_distributions

    This is an accepted version of this page This is the latest accepted revision, reviewed on 3 March 2025. List of software distributions using the Linux kernel This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these messages) This article relies excessively on references to primary sources. Please improve this ...

  4. Outline of Ubuntu - Wikipedia

    en.wikipedia.org/wiki/Outline_of_Ubuntu

    chgrp — used by unprivileged users on Unix-like systems to change the group associated with a file system object (such as a file, directory, or link) to one of which they are a member. A file system object has 3 sets of access permissions, one set for the owner, one set for the group and one set for others.

  5. Comparison of open-source operating systems - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_open-source...

    Multiserver Microkernel (Hurd kernel) or Monolithic (Linux-libre kernel, fork of Linux kernel, and other kernels which are not part of the GNU Project) C: 1:1 Unix-like: 2.4 on Linux-libre kernel (not on Hurd kernel) Linux: ReactOS: GPL, LGPL Hybrid C, C++ Windows-like: No RISC OS: Apache 2.0 Monolithic (with cooperative multitasking) ARM ...

  6. Linux kernel - Wikipedia

    en.wikipedia.org/wiki/Linux_kernel

    The Linux kernel is a free and open source, [11]: 4 Unix-like kernel that is used in many computer systems worldwide. The kernel was created by Linus Torvalds in 1991 and was soon adopted as the kernel for the GNU operating system (OS) which was created to be a free replacement for Unix.

  7. Filesystem Hierarchy Standard - Wikipedia

    en.wikipedia.org/wiki/Filesystem_Hierarchy_Standard

    Source code (e.g., the kernel source code with its header files). /usr/X11R6: X Window System, Version 11, Release 6 (up to FHS-2.3, optional). /var: Variable files: files whose content is expected to continually change during normal operation of the system, such as logs, spool files, and temporary e-mail files. /var/cache: Application cache data.

  8. List of commercial products based on Red Hat Enterprise Linux

    en.wikipedia.org/wiki/List_of_commercial...

    Check Point SecurePlatform 2.6 has kernel based on Red Hat Enterprise Linux 5 and user space based on RHEL 3 ; Check Point SecurePlatform R70 is based on Red Hat Enterprise Linux 5. Check Point Gaia is based on Red Hat Enterprise Linux 5.2. Check Point SecurePlatform VSX R67 is based on Red Hat Enterprise Linux 5.2. Cisco. Cisco Global Site ...

  9. Rump kernel - Wikipedia

    en.wikipedia.org/wiki/Rump_kernel

    It aims to have a set of utilities to access and modify a file system image without having to mount it. The fs-utils does not require a superuser account to access the image or device. The advantage of fs-utils over similar projects such as mtools is supporting the usage of familiar filesystem Unix commands ( ls , cp , mv , cd , etc.) for a ...