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  2. List of software forks - Wikipedia

    en.wikipedia.org/wiki/List_of_software_forks

    The many varieties of proprietary Unix in the 1980s and 1990s — almost all derived from AT&T Unix under licence and all called "Unix", but increasingly mutually incompatible. See UNIX wars. Most Linux distributions are descended from other distributions, most being traceable back to Debian, Red Hat or Softlanding Linux System (see image right ...

  3. fork (system call) - Wikipedia

    en.wikipedia.org/wiki/Fork_(system_call)

    Fork and its variants are typically the only way of doing so in Unix-like systems. For a process to start the execution of a different program, it first forks to create a copy of itself. Then, the copy, called the " child process ", calls the exec system call to overlay itself with the other program: it ceases execution of its former program in ...

  4. List of BSD operating systems - Wikipedia

    en.wikipedia.org/wiki/List_of_BSD_operating_systems

    Discounted. Fork of OpenBSD with all non-free binaries removed. MicroBSD: Fork of the UNIX-like BSD operating system descendant OpenBSD 3.0, begun in July 2002. The project's objective to produce a free and fully secure, complete system, but with a small footprint. MirOS BSD

  5. Fork (software development) - Wikipedia

    en.wikipedia.org/wiki/Fork_(software_development)

    David A. Wheeler notes [9] four possible outcomes of a fork, with examples: The death of the fork. This is by far the most common case. It is easy to declare a fork, but considerable effort to continue independent development and support. A re-merging of the fork (e.g., egcs becoming "blessed" as the new version of GNU Compiler Collection.)

  6. Fork–exec - Wikipedia

    en.wikipedia.org/wiki/Fork–exec

    fork() is the name of the system call that the parent process uses to "divide" itself ("fork") into two identical processes. After calling fork(), the created child process is an exact copy of the parent except for the return value of the fork() call. This includes open files, register state, and all memory allocations, which includes the ...

  7. DragonFly BSD - Wikipedia

    en.wikipedia.org/wiki/DragonFly_BSD

    DragonFly BSD is a free and open-source Unix-like operating system forked from FreeBSD 4.8. Matthew Dillon, an Amiga developer in the late 1980s and early 1990s and FreeBSD developer between 1994 and 2003, began working on DragonFly BSD in June 2003 and announced it on the FreeBSD mailing lists on 16 July 2003.

  8. System call - Wikipedia

    en.wikipedia.org/wiki/System_call

    The actual system call does transfer control to the kernel (and is more implementation-dependent and platform-dependent than the library call abstracting it). For example, in Unix-like systems, fork and execve are C library functions that in turn execute instructions that invoke the fork and exec system calls.

  9. Child process - Wikipedia

    en.wikipedia.org/wiki/Child_process

    In Unix, a child process is typically created as a copy of the parent, using the fork system call. The child process can then overlay itself with a different program (using exec ) as required. [ 1 ]