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Chapter 5. Installing Tcl/Tk
Tcl is a dynamic programming language, and Tk is a graphical user interface (GUI) toolkit. Install Tcl and Tk on Red Hat Enterprise Linux for dynamic scripting and graphical interfaces.
5.1. Introduction to Tcl/Tk
Tcl is a dynamic programming language, while Tk is a graphical user interface (GUI) toolkit. They provide a powerful and easy-to-use platform for developing cross-platform applications with graphical interfaces. As a dynamic programming language, 'Tcl' provides simple and flexible syntax for writing scripts. The tcl package provides the interpreter for this language and the C library. You can use Tk as GUI toolkit that provides a set of tools and widgets for creating graphical interfaces. You can use various user interface elements such as buttons, menus, dialog boxes, text boxes, and canvas for drawing graphics. Tk is the GUI for many dynamic programming languages.
For more information about Tcl/Tk, see the Tcl/Tk manual or Tcl/Tk documentation web page.
5.2. Installing Tcl
The default Tcl implementation is usually installed by default. To install it manually, use the following procedure.
Procedure
To install
Tcl, use:# dnf install tcl
Verification
To verify the Tcl version installed on your system, run the interpreter
tclsh.$ tclshIn the interpreter run this command:
% info patchlevel 8.6- You can exit the interpreter interface by pressing Ctrl+C
5.3. Installing Tk
The default Tk implementation is usually installed by default. To install it manually, use the following procedure.
Procedure
To install
Tk, use:# dnf install tk
Verification
To verify the
Tkversion installed on your system, run the window shellwish. You need to be running a graphical display.$ wishIn the shell run this command:
% puts $tk_version 8.6- You can exit the interpreter interface by pressing Ctrl+C
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