pid

pid(n)                       Tcl Built-In Commands                      pid(n)



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NAME
       pid - Retrieve process id(s)

SYNOPSIS
       pid ?fileId?
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DESCRIPTION
       If the fileId argument is given then it should normally refer to a pro-
       cess pipeline created with the open command.  In this case the pid com-
       mand  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.


SEE ALSO
       exec(n), open(n)


KEYWORDS
       file, pipeline, process identifier



Tcl                                   7.0                               pid(n)