48 lines
1.9 KiB
Plaintext
48 lines
1.9 KiB
Plaintext
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'\"
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'\" Copyright (c) 1993 The Regents of the University of California.
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'\" All rights reserved.
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'\"
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'\" Permission is hereby granted, without written agreement and without
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'\" license or royalty fees, to use, copy, modify, and distribute this
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'\" documentation for any purpose, provided that the above copyright
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'\" notice and the following two paragraphs appear in all copies.
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'\"
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'\" IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY
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'\" FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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'\" ARISING OUT OF THE USE OF THIS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
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'\" CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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'\"
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'\" THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
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'\" INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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'\" AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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'\" ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
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'\" PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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'\"
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'\" $Header: /user6/ouster/tcl/man/RCS/pid.n,v 1.1 93/05/15 16:19:40 ouster Exp $ SPRITE (Berkeley)
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'\"
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.so man.macros
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.HS pid tcl 7.0
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.BS
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'\" Note: do not modify the .SH NAME line immediately below!
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.SH NAME
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pid \- Retrieve process id(s)
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.SH SYNOPSIS
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\fBpid \fR?\fIfileId\fR?
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.BE
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.SH DESCRIPTION
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.PP
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If the \fIfileId\fR argument is given then it should normally
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refer to a process pipeline created with the \fBopen\fR command.
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In this case the \fBpid\fR command will return a list whose elements
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are the process identifiers of all the processes in the pipeline,
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in order.
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The list will be empty if \fIfileId\fR refers to an open file
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that isn't a process pipeline.
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If no \fIfileId\fR argument is given then \fBpid\fR returns the process
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identifier of the current process.
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All process identifiers are returned as decimal strings.
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.SH KEYWORDS
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file, pipeline, process identifier
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