pid(3Tcl)							     pid(3Tcl)

NAME    [Toc]    [Back]

     pid - Retrieve process id(s)

SYNOPSIS    [Toc]    [Back]

     pid ?fileId?

DESCRIPTION    [Toc]    [Back]

     If	the fileId argument is given then it should normally refer to a
     process pipeline created with the open command.  In this case the pid
     command will return a list	whose elements are the process identifiers of
     all the processes in the pipeline,	in order.  The list will be empty if
     fileId refers to an open file that	isn't a	process	pipeline.  If no
     fileId argument is	given then pid returns the process identifier of the
     current process.  All process identifiers are returned as decimal
     strings.

KEYWORDS    [Toc]    [Back]

     file, pipeline, process identifier


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