pid(template) - phpMan

getpid (2)           - get process identification
getpid (3p)          - get the process ID
getppid (2)          - get process identification
getppid (3p)         - get the parent process ID
git (1)              - the stupid content tracker
mysql_waitpid (1)    - kill process and wait for its termination
pidof (8)            - find the process ID of a running program.
waitpid (2)          - wait for process to change state
waitpid (3p)         - wait for a child process to stop or terminate