unix job control造句

A component of a job ( as a unit of work ) is called a " process, which may in turn have subprocesses ( child processes; the process corresponding to the job being the parent process ) which perform the tasks or steps that comprise the work of the job; or with a process group; or with an abstract reference to a process or process group, as in Unix job control.
It's difficult to find unix job control in a sentence. 用unix job control造句挺难的