Processes Methods

The table below shows C methods used in process programming in a Linux operating system:

Command	Information
getpid()	returns the pid identifier of the calling process.
getppid()	returns the pid identifier of the parent process.
execl(), execlp(), execle(), execv(), execvp(), execvpe()	execute a command.
fork()	creates a child process.
exit()	causes normal process termination.
wait(), waitpid(), waitid()	waits for the process to change status.