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incr(n)                                     Tcl Built-In Commands                                    incr(n)



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NAME
       incr - Increment the value of a variable

SYNOPSIS
       incr varName ?increment?
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DESCRIPTION
       Increments the value stored in the variable whose name is varName.  The value of the variable must be
       an integer.  If increment is supplied then its value (which must be an integer) is added to the value
       of  variable  varName;  otherwise 1 is added to varName.  The new value is stored as a decimal string
       in variable varName and also returned as result.


SEE ALSO
       expr(n)


KEYWORDS
       add, increment, variable, value



Tcl                                                                                                  incr(n)