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- '\" $Header: /user6/ouster/tcl/man/RCS/set.n,v 1.1 93/06/07 16:48:27 ouster Exp $ SPRITE (Berkeley)
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- .so man.macros
- .HS set tcl
- .BS
- '\" Note: do not modify the .SH NAME line immediately below!
- .SH NAME
- set \- Read and write variables
- .SH SYNOPSIS
- \fBset \fIvarName \fR?\fIvalue\fR?
- .BE
-
- .SH DESCRIPTION
- .PP
- Returns the value of variable \fIvarName\fR.
- If \fIvalue\fR is specified, then set
- the value of \fIvarName\fR to \fIvalue\fR, creating a new variable
- if one doesn't already exist, and return its value.
- If \fIvarName\fR contains an open parenthesis and ends with a
- close parenthesis, then it refers to an array element: the characters
- before the first open parenthesis are the name of the array, and the characters
- between the parentheses are the index within the array.
- Otherwise \fIvarName\fR refers to a scalar variable.
- If no procedure is active, then \fIvarName\fR refers to a global
- variable.
- If a procedure is active, then \fIvarName\fR refers to a parameter
- or local variable of the procedure unless the \fIglobal\fR command
- has been invoked to declare \fIvarName\fR to be global.
-
- .SH KEYWORDS
- read, write, variable
-