What is a .pid file and what does it contain?

What is a .pid file and what does it contain?

linux unix pid

unix

Determine the process pid listening on a certain port

unix port freebsd pid

unix

Postgres DB not starting on Mac OSX: ERROR says: connections on Unix domain socket [closed]

macos postgresql unix pid pgadmin

unix

Must my pidfile be located in /var/run?

linux ubuntu unix pid

unix

How to get pid given the process name

unix ksh pid ps

unix

How to get PID of process by specifying process name and store it in a variable to use further?

unix process pid

unix

Portable shell solution to check if PID is zombied

shell unix sh pid

unix

Getting PID of process in Shell Script

linux shell unix pid

unix

Inside a bash script, how to get PID from a program executed when using the eval command?

bash unix process eval pid

unix

Files being used by a unix process

unix command-line solaris pid fuser

unix

How can I figure out the program that caused core dump?

unix osx-yosemite pid coredump

unix

NSRunningApplication.h: "Not all applications have a pid"

cocoa unix pid

unix

How to use the pidfile library correctly?

c linux unix daemon pid

unix

SIGKILL init process (PID 1)

unix signals init pid sigkill

unix

killing Parent process along with child process using SIGKILL

linux shell unix pid kill-process

unix