In computing, an operation whereby a process creates a copy of itself, usually through a system call implemented in the kernel
Also known as fork operation · fork syscall · fork() · Unix fork · process fork · forking a process
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In computing, fork is an operation whereby a process creates a copy of itself. It is usually implemented as a C standard library wrapper to the fork, clone, or other system calls of the kernel. For many years, fork was the primary method of process creation on Unix and Unix-like operating systems, and it remains a required interface for compliance with POSIX. Despite this, it has fallen out of favor in recent years as a result of flaws including poor performance, a lack of thread safety, and its status as a common source of security vulnerabilities.