TCL TK Tutorial: Tool Command Language

What is TCL?

TCL is shell application that reads TCL command from its standard input or from a file and gives desired results.

TCL is string based scripting language and also a procedural language. It was first created by John Osterhout in 1989. The purpose of developing this language is easy embedded inti ( ) applications. The language is commonly used for GUIs and testing. For instance, rapid prototyping, Testing database interaction, etc. In TCL by default everything is a string.

In this tutorial, you will learn-

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