TCL (Tool Command Language) is a powerful, high-level scripting language that is designed for flexibility, extensibility, and ease of use. TCL is widely used for creating applications, automating tasks, and building interactive user interfaces, all while integrating seamlessly with other programming languages like C and Python.

Features of TCL:

• TCL is an easy-to-learn language with a simple syntax, making it an ideal choice for rapid application development and scripting tasks.
• It provides extensibility through its ability to embed C and C++ code, enabling developers to add custom functionality and integrate with external libraries.
• TCL's event-driven architecture allows developers to build interactive applications, including GUI-based programs using the TK toolkit.
• Designed to be cross-platform, TCL can run on various operating systems, including Windows, Linux, and macOS.
• The language supports automatic memory management, eliminating the need for manual memory allocation and garbage collection.
• It is particularly useful for automation tasks, such as system administration, testing, and process control.
• TCL has robust built-in libraries for networking, file manipulation, string processing, and more.

To Check the version Run:

 dpkg -l | grep tcl 

Disclaimer: TCL® is an open-source project licensed under the BSD license. It is not affiliated with, endorsed by, or sponsored by any specific company. TCL is provided "as is," without any warranty, express or implied. Users are responsible for understanding and complying with licensing terms and regulations while using TCL.