TCL Concepts

Usage: Used when we have to change the value of a global variable from inside a procedure’s scope Example proc example {one t...

Usage: ?: is used in sub patterns in a regexp When ever you don’t want a particular subpattern to be included as a sub-pattern us...

Regsub Usage Replaces a value with a given value Syntax: regsub “<actual value in the string>”  $string “<value to r...