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- Xref: sparky comp.unix.misc:4781 alt.amateur-comp:425
- Newsgroups: comp.unix.misc,alt.amateur-comp
- Path: sparky!uunet!gatech!concert!fletcher!mcmahan
- From: mcmahan@cs.unca.edu (Scott McMahan -- Genesis mailing list owner)
- Subject: Re: What makes Unix Special?
- Message-ID: <1992Dec31.175557.18716@cs.unca.edu>
- Organization: University of North Carolina at Asheville
- X-Newsreader: Tin 1.1 PL5
- References: <1992Dec31.062544.5838@news.columbia.edu>
- Date: Thu, 31 Dec 1992 17:55:57 GMT
- Lines: 83
-
- Michael Hauben (hauben@cunixf.cc.columbia.edu) wrote:
- : When ever I talk to someone about Unix or read a book about the
- : Unix Operating System, it eventually comes up that is is
- : wonderful.
-
- Self-evident truths always do! :)
-
- :People and Books say that using Unix is a joy. This is
- : a mystery to me.
-
- It is successful for the same reasons C is: nothing better has
- come along yet. There may be *better* things than UNIX and C, but
- none that make the aggrevation worth the benefits. (Modula-2 has
- everything C has, and a lot more, but it is a tremendous pain to
- use.)
-
- The success comes from a lot of different reasons:
-
- It's easy to port to a new computer.
-
- A corollary is, would you rather have a brand new, completely different
- operating system to learn, or more UNIX, on your new system. Come
- to think of it, would you rather use UNIX tools to repair a destroyed
- UNIX file system, or learn a new file system when a disaster happens?
- Anyway, more of the same is better than something entirely new.
-
- It's fun to program in. System calls in UNIX are very easy to learn
- and incorporate into your C or C++ program. Contrast this with VMS,
- which is so incredibly complex to do system calls in. Plus, you
- get to use C, and since UNIX is mostly written in C, they mesh
- very well.
-
- And people write neat programs like Emacs and Perl so you have a
- *LOT* of *POWER* at your fingertips, which can be used and enjoyed
- with a minimum of learnign investment. Once you learn some Emacs
- commands, you can use them to type in programs, or read and send
- mail, or organize your directory(-ies :)). Once you learn Perl,
- you will know regular expressions and enough to use tools like
- awk,shells, and sort (not that you'd want to :)). Sure these
- have been ported into other OSes, but they tend to work best in
- the native environment :).
-
- You can network UNIX computers together easily -- in fact, the NFS
- system is being adopted by other people like Novell so you can
- network other things to UNIX. Plus TCP/IP comes with a UNIX computer,
- ready to hook it to the internet :)
-
- There's a lot of stuff, like X windows, designed to run on top of
- UNIX. From all the accounts I've heard, X is a lot more stable than
- say Windows.
-
- Complete multi-tasking, background jobs, etc. You can have stuff
- running *any* time you want it to.
-
- Complete extend-ability. If there's something you want UNIX to do,
- you can bet someone's already done it, and get it via FTP. And,
- if not, writing it isn't a big deal.
-
- The cli -- command line interface -- has come a long way from sh.
- tcsh, the best interactive shell out there now, has full command
- line editing and recall (it even saves your commands between
- sessions!). A program called "screen" allows a vt100-type terminal
- to have multiple "windows" with multiple tasks going at once and
- lets you switch between them. None of these tools has a particularly
- steep learning curve.
-
- But then you look at the alternatives (I could go on all day
- about how great UNIX is :)) and there's nothing that compares
- to it. UNIX evolves and changes as necessary, and is designed to
- be able to do that easily.
-
- Of course, UNIX itself has a lot of stuff a user has to learn before
- the greatness becomes self-evident. Initial stumbling around
- with the 10,000,000 programs in /bin and /usr/bin and fumbling with
- Emacs (like I did :)) are eventually rewarded. UNIX is remarkably
- consistent, despite a few inconsistencies in the utility programs, and
- well designed. (The inconsistencies I've found can be explained like
- ones in language: through the history of the programs)
-
- Just a $0.02 opinionated view :^)
-
- Scott
-
-