How to use Tcl/Tk

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	Interactive Mode 
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  About Tcl
-------------

To invoke Tcl scripts, 

	> tclsh
	
To see the list of Tcl commands

	% ?

To exit Tcl shell,

	% exit

( Example )  

	% expr 2 + 2


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  About Tk
------------

To invoke windowing shell, wish,

	> wish

To see the list of Tk commands,

	% ?

To exit wish, 

	% exit

( Example )  

	% button .b -text "Hello, world!" -command exit
	% pack .b


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	Script File
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1) Open a file named hello.tk by using an editor.

2) Type the following commands into the file;

	#!/opt/bin/wish -f
	button .b -text "Hello, world!" -command exit
        pack .b

3) Change the file mode;

	> chmod +x hello.tk

4) Type the following to invoke;

	> hello.tk

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Written By Eunmi Choi (4/18/95)