45 lines
1.8 KiB
Plaintext
45 lines
1.8 KiB
Plaintext
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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/incr.n,v 1.1 93/05/03 17:34:02 ouster Exp $ SPRITE (Berkeley)
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'\"
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.so man.macros
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.HS incr tcl
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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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incr \- Increment the value of a variable
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.SH SYNOPSIS
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\fBincr \fIvarName \fR?\fIincrement\fR?
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.BE
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.SH DESCRIPTION
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.PP
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Increments the value stored in the variable whose name is \fIvarName\fR.
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The value of the variable must be an integer.
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If \fIincrement\fR is supplied then its value (which must be an
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integer) is added to the value of variable \fIvarName\fR; otherwise
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1 is added to \fIvarName\fR.
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The new value is stored as a decimal string in variable \fIvarName\fR
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and also returned as result.
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.SH KEYWORDS
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add, increment, variable, value
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