Chapter 2
The Mechanics of Using the Tcl and Tk Interpreters
The first step in learning a new computer language is learning to run the interpreter/compiler and creating simple executable programs. This chapter explores the following.
• The mechanics of starting the interpreters
• Starting tclsh and wish scripts in interactive mode
• Exiting the interpreter
• Running tclsh and wish scripts from files
2.1 The tclsh and wish Interpreters
The standard Tcl/Tk binary distribution includes the following two interpreters.
• tclsh A text-oriented interpreter that includes the core commands, looping constructs, data types, I/O, procedures, and so on. Tclsh is useful for applications that do not require a GUI.
• wish A GUI-oriented extension to the
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