Process identifier
From Free net encyclopedia
In computing, the process identifier (normally referred to as the process ID or just PID) is a number used by some operating system kernels (such as that of UNIX or Windows NT) to uniquely identify a process.
Under Unix, the PID of a newly created child process is returned by the fork() system call to the parent.
The PID can be passed to waitpid() or kill() to perform actions on the given process, and the files in /proc/pid/ can be queried for information about the process.
- This article was originally based on material from the Free On-line Dictionary of Computing, which is licensed under the GFDL.
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See also
eu:Pid fr:Identifiant de processus pl:PID (informatyka) pt:PID