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/unset.n,v 1.1 93/06/16 16:48:28 ouster Exp $ SPRITE (Berkeley)
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'\"
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.so man.macros
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.HS unset 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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unset \- Delete variables
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.SH SYNOPSIS
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\fBunset \fIname \fR?\fIname name ...\fR?
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.BE
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.SH DESCRIPTION
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.PP
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This command removes one or more variables.
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Each \fIname\fR is a variable name, specified in any of the
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ways acceptable to the \fBset\fR command.
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If a \fIname\fR refers to an element of an array then that
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element is removed without affecting the rest of the array.
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If a \fIname\fR consists of an array name with no parenthesized
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index, then the entire array is deleted.
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The \fBunset\fR command returns an empty string as result.
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An error occurs if any of the variables doesn't exist, and any variables
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after the non-existent one are not deleted.
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.SH KEYWORDS
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remove, variable
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