set(n)                       Tcl ( )                       set(n)



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     NAME
          set - Read and write variables

     SYNOPSIS
          set varName ?value?
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     DESCRIPTION
          Returns  the  value  of  variable  varName.   If  value   is
          specified,  then set the value of varName to value, creating
          a new variable if one doesn't already exist, and return  its
          value.   If  varName  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
          varName refers to a scalar variable.   If  no  procedure  is
          active,  then  varName  refers  to  a global variable.  If a
          procedure is active, then varName refers to a  parameter  or
          local  variable  of  the procedure unless the global command
          has been invoked to declare varName to be global.


     KEYWORDS
          read, write, variable



























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