Name

incr

incr varName [increment]

Increment the variable varName. The optional increment specifies the value to be added to the variable; it defaults to 1. The new value is returned.

Get Tcl/Tk in a Nutshell now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.

Start your free trial