24 lines
1.2 KiB
HTML
24 lines
1.2 KiB
HTML
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<HTML><HEAD><TITLE>Built-In Commands - incr manual page</TITLE></HEAD><BODY>
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<H3><A NAME="M2">NAME</A></H3>
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incr - Increment the value of a variable
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<H3><A NAME="M3">SYNOPSIS</A></H3>
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<B>incr </B><I>varName </I>?<I>increment</I>?<BR>
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<H3><A NAME="M4">DESCRIPTION</A></H3>
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Increments the value stored in the variable whose name is <I>varName</I>.
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The value of the variable must be an integer.
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If <I>increment</I> is supplied then its value (which must be an
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integer) is added to the value of variable <I>varName</I>; otherwise
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1 is added to <I>varName</I>.
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The new value is stored as a decimal string in variable <I>varName</I>
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and also returned as result.
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<H3><A NAME="M5">SEE ALSO</A></H3>
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<B><A HREF="../TkCmd/expr.htm">expr</A></B>
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<H3><A NAME="M6">KEYWORDS</A></H3>
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<A href="../Keywords/A.htm#add">add</A>, <A href="../Keywords/I.htm#increment">increment</A>, <A href="../Keywords/V.htm#variable">variable</A>, <A href="../Keywords/V.htm#value">value</A>
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<HR><PRE>
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<A HREF="../copyright.htm">Copyright</A> © 1993 The Regents of the University of California.
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<A HREF="../copyright.htm">Copyright</A> © 1994-1996 Sun Microsystems, Inc.
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<A HREF="../copyright.htm">Copyright</A> © 1995-1997 Roger E. Critchlow Jr.</PRE>
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</BODY></HTML>
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