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<HTML><TITLE>Basic Syntax and I/O</TITLE><BODY BGCOLOR="#FFF0E0" VLINK="#0FBD0F" TEXT="#101000" LINK="#0F0FDD">
<A NAME="top"><H1>Basic Syntax and I/O</H1>
<I> Online chapter from <A HREF="javascript:if(confirm('http://www.mapfree.com/sbf/tcl/book/home.html \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.mapfree.com/sbf/tcl/book/home.html'" tppabs="http://www.mapfree.com/sbf/tcl/book/home.html">Tcl/Tk for Programmers</A> (with exercises and solutions).</I>
<P>
This chapter covers much of Tcl's basic syntax as it
applies to command lines -- expressions are described in the next chapter.
<P> Basic file I/O and the <TT>while</TT> loop are also introduced here.
<DL><DD>
<STRONG>2.1 <A HREF="2.1.html" tppabs="http://www.mapfree.com/sbf/tcl/book/select/Html/2.1.html">The Form of a Tcl Script</A></STRONG><BR>
<STRONG>2.2 <A HREF="2.2.html" tppabs="http://www.mapfree.com/sbf/tcl/book/select/Html/2.2.html">Variables in Tcl</A></STRONG><BR>
<STRONG>2.3 <A HREF="2.3.html" tppabs="http://www.mapfree.com/sbf/tcl/book/select/Html/2.3.html">Copying a File Line by Line</A></STRONG><BR>
<STRONG>2.4 <A HREF="2.4.html" tppabs="http://www.mapfree.com/sbf/tcl/book/select/Html/2.4.html">While Loop</A></STRONG><BR>
<STRONG>2.5 <A HREF="2.5.html" tppabs="http://www.mapfree.com/sbf/tcl/book/select/Html/2.5.html">Curly Brackets</A></STRONG><BR>
<STRONG>2.6 <A HREF="2.6.html" tppabs="http://www.mapfree.com/sbf/tcl/book/select/Html/2.6.html">Double Quotes</A></STRONG><BR>
<STRONG>2.7 <A HREF="2.7.html" tppabs="http://www.mapfree.com/sbf/tcl/book/select/Html/2.7.html">Command Substitution</A></STRONG><BR>
<STRONG>2.8 <A HREF="2.8.html" tppabs="http://www.mapfree.com/sbf/tcl/book/select/Html/2.8.html">Opening Files</A></STRONG><BR>
<STRONG>2.9 <A HREF="2.9.html" tppabs="http://www.mapfree.com/sbf/tcl/book/select/Html/2.9.html">Completed File Copying Example</A></STRONG><BR>
<STRONG>2.10 <A HREF="2.10.html" tppabs="http://www.mapfree.com/sbf/tcl/book/select/Html/2.10.html">More about Substitution</A></STRONG><BR>
<STRONG>2.11 <A HREF="2.11.html" tppabs="http://www.mapfree.com/sbf/tcl/book/select/Html/2.11.html">Solutions to Exercises</A></STRONG><BR>
</DL>
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<STRONG>Related to</STRONG>
<A HREF="javascript:if(confirm('http://www.mapfree.com/sbf/home.html \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.mapfree.com/sbf/home.html'" tppabs="http://www.mapfree.com/sbf/home.html">Software Build and Fix</A><WBR>
<STRONG>| From</STRONG>
<A HREF="javascript:if(confirm('http://www.mapfree.com/sbf/tcl/home.html \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.mapfree.com/sbf/tcl/home.html'" tppabs="http://www.mapfree.com/sbf/tcl/home.html">Zimmer's Tcl/Tk Page</A><WBR>
<STRONG>| Author</STRONG>
<A HREF="javascript:if(confirm('http://www.mapfree.com/mp/jaz/home.html \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.mapfree.com/mp/jaz/home.html'" tppabs="http://www.mapfree.com/mp/jaz/home.html">J. A. Zimmer</A><WBR>
<STRONG>| Copyright</STRONG>
<A HREF="copyright.html" tppabs="http://www.mapfree.com/sbf/tcl/book/select/Html/copyright.html">Notice</A>
<P>
<I>Jun 17, 1998</I>
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