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<TITLE>7. Programming</TITLE>
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<B> Next:</B> <A NAME="tex2html256"
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HREF="node9.html">8. Hacking</A>
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HREF="unx.html">Introduction to Unix &</A>
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<B> Previous:</B> <A NAME="tex2html246"
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HREF="node7.html">6. Super Dimension Fortress</A>
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HREF="node1.html">Contents</A></B>
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<A NAME="CHILD_LINKS"><STRONG>Subsections</STRONG></A>
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<UL>
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<LI><A NAME="tex2html257"
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HREF="#SECTION00810000000000000000">7.1 Language</A>
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<LI><A NAME="tex2html258"
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HREF="#SECTION00820000000000000000">7.2 Languages on SDF</A>
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<LI><A NAME="tex2html259"
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HREF="#SECTION00830000000000000000">7.3 Theory</A>
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<HR>
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<H1><A NAME="SECTION00800000000000000000">
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7. Programming</A>
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</H1>
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<P>
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So you want to learn to program? Good. Programming is fun,
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creative, & fascinating. (It used to be a well-paying career, too. I
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guess it still is, if you are in India or China.)
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<P>
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<H1><A NAME="SECTION00810000000000000000">
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7.1 Language</A>
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</H1>
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<P>
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There are billions & billions of programming languages.
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Well, not that many, but there's a damned lot.
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<P>
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You'll probably want to learn one of the most popular ones,
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which is too bad because most of the currently popular
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languages aren't very good. They are complex versions of
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the exact same features that have been available in
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programming languages since the 1960s. That's right: Even
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after forty years of hyped, new languages, we've effectively
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come full-circle to Algol 1960.
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<P>
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But I'm a bitter & opinionated old programmer, so ignore
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what I just wrote. Here's some actually useful information:
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<P>
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You can use just about any language you want on unix. At
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the moment, it might be difficult to find a fully
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functioning C# compiler for unix, but one is coming, &
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there is no technical reason that C# won't work on unix.
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Many other programming languages are available for unix.
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Heck, many were developed <EM>on</EM> unix. So you can pick
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pretty much whichever you want.
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<P>
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No matter what you pick, I highly recommend that you also do
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some plain, vanilla C. That's because the programming
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language of unix is C. When you need to write some programs
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to experiment with some feature of unix to learn the details
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of how it works before you use it in a larger program you
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are writing, the best language for writing those
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experimental programs is C because it hides the least from
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you. It's not that C is better, & I'm not saying it's
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better for writing applications. I mean that because unix's
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API is for C, C is the best language for discovering how
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unix's system calls work. C doesn't hide anything from
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you.
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<P>
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There are two books you need to do serious C programming.
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<P>
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The first is the original & the classic <EM>The C
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Programming Language</EM>, by Kernighan & Ritchie
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([<A
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HREF="node11.html#kandr">aDMR88</A>]). Yeah, it's old & small, but since when is
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information bad just because it's old? And since when would
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you rather take days to read a humongous tome that contained
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no more information than in a small book like K&R?
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<P>
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The second book you need for C programming is <EM>The
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Standard C Library</EM>, by P. J. Plauger
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([<A
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HREF="node11.html#plauger:library">Pla92</A>]).
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<P>
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<H1><A NAME="SECTION00820000000000000000">
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7.2 Languages on SDF</A>
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</H1>
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<P>
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Here are some languages that are available on SDF. You may
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have to be validated or even ARPA to use some of them, but I
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don't know for sure.
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<P>
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<DIV ALIGN="CENTER">
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<TABLE CELLPADDING=3 BORDER="1">
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<TR><TD ALIGN="RIGHT"><B>language</B></TD>
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<TD ALIGN="LEFT"><B>pathname</B></TD>
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</TR>
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<TR><TD ALIGN="RIGHT">Bourne (or other)</TD>
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<TD ALIGN="LEFT">/bin/sh</TD>
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</TR>
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<TR><TD ALIGN="RIGHT">C</TD>
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<TD ALIGN="LEFT">/usr/bin/gcc</TD>
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</TR>
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<TR><TD ALIGN="RIGHT">C++</TD>
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<TD ALIGN="LEFT">/usr/bin/g++</TD>
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</TR>
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<TR><TD ALIGN="RIGHT">Open Lisp (not Common)</TD>
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<TD ALIGN="LEFT">/sys/pkg/uxlisp/uxlisp</TD>
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</TR>
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<TR><TD ALIGN="RIGHT">Perl</TD>
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<TD ALIGN="LEFT">/usr/pkg/bin/perl</TD>
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</TR>
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<TR><TD ALIGN="RIGHT">Python</TD>
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<TD ALIGN="LEFT">/usr/pkg/bin/python</TD>
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</TR>
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</TABLE>
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</DIV>
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<P>
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To learn a language, I recommend studying at least one book,
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not just online sources.
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<P>
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<H1><A NAME="SECTION00830000000000000000">
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7.3 Theory</A>
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</H1>
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<P>
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Obtain, read, & understand a book about data structures.
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Learn it & learn to love it. Data structures separates the
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scripters from the programmers.
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<P>
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<B> Next:</B> <A NAME="tex2html256"
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HREF="node9.html">8. Hacking</A>
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<B> Up:</B> <A NAME="tex2html252"
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HREF="unx.html">Introduction to Unix &</A>
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<B> Previous:</B> <A NAME="tex2html246"
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HREF="node7.html">6. Super Dimension Fortress</A>
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HREF="node1.html">Contents</A></B>
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<ADDRESS>
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Gene Michael Stover
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2005-07-07
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