|
... would move file1 to your News directory.
rm Deletes a file. Type
rm filename
and hit enter (but beware: when you hit enter, it's gone for
good).
WILDCARDS: When searching for, increase traffic king prussia copying or deleting files, you can
use "wildcards" if you are not sure of the file's exact name.
ls man*
would find the following traffic king prussia files:
manual, manual.txt, man-o-man.
Use a question mark when you're sure about all but one or two characters.
For example,
ls man?
would find a file called mane, but not one called manual.
2.7 WHEN THINGS GO WRONG
* You send a message but get back an ominous looking message from
MAILER-DAEMON containing up to several dozen lines of computerese
followed by your message.
Somewhere in those lines you can often find a clue to what went
wrong. You might have made a mistake in spelling the e-mail address.
The site to which you're sending mail might have been down for
maintenance or a problem. You may have used the wrong "translation" for
mail to a non-Internet network.
* You call up your host system's text editor to write a message or
reply to one and can't seem to get out.
If it's emacs, try control-X, control-C (in other words, hit your
control key and your X key at the same time, followed by control and C).
If worse comes to worse, you can hang up.
* In elm, you accidentally hit the D key for a message you want to
save.
Type the number of the message, hit enter and then U, which will
"un-delete" the message. This works only before you exit Elm; once you
quit, the message is gone.
* You try to upload an ASCII message you've written on your own
computer into a message you're preparing in Elm or Pine and you get a
lot of left brackets, capital Ms, Ks and Ls and some funny-looking
characters.
Believe it or not, your message traffic king prussia will actually wind up looking fine;
all that garbage is temporary and reflects the problems some Unix text
processors have with ASCII uploads. But it will take much longer for
your upload to finish. One way to deal with this is to call up the
simple mail program, which will not produce any weird characters when you
upload a text file into a message. Another way (which is better if your
prepared message is a response to somebody's mail), is to create a text
file on your host system with cat, for example,
cat>file
and then upload your text into that. Then, in elm or pine, you can
insert the message with a simple command (control-R in pine, for
example); only this time you won't see all that extraneous stuff.
* You haven't cleared out your Elm mailbox in awhile, and you
accidentally hit "y" when you meant to hit "n" (or vice-versa) when
exiting and now all your messages have disappeared. Look in your News
directory (at the command line, type: cd News) for a file called
recieved. Those are all your messages. Unfortunately, there's no way to
get them back into your Elm mailbox -- you'll have to download the file
or read it online.
Chapter 3: USENET I
3.1 THE GLOBAL WATERING HOLE
Imagine a conversation carried out over a period of hours and days,
as if people were leaving messages and responses on a bulletin board.
Or
imagine the electronic equivalent of a radio talk show where everybody
can put their two cents in and no one is ever on hold.
Unlike e-mail, which is usually "one-to-one," Usenet is "many-to-
many." Usenet is the international meeting place, where people gather to
meet their friends, discuss the day's events, keep up with computer
trends or talk about whatever's on their mind. Jumping into a Usenet
discussion can be a liberating experience. Nobody knows what you look or
sound like, how old you are, what your traffic king prussia background is. You're judged
solely on your words, your ability to make a point.
To many people, Usenet IS the Net. In fact, it is often confused
with Internet. But it is a totally separate system. All Internet sites
CAN carry Usenet, but so do many non-Internet sites, from sophisticated
Unix machines to old XT clones and Apple IIs.
Technically, Usenet messages are shipped traffic king prussia around the world, from
host system to host system, using one of several specific Net
protocols. Your host system stores all of its Usenet messages in one
place, which everybody with an account on the system can access. That
way, no matter how many people actually read a given message, each
host system has to store only one copy of it. Many host systems "talk"
with several others regularly in case one or another of their links goes
down for some reason. When two host systems connect, they basically
compare notes on which Usenet messages they already have. Any that one
is missing the other then transmits, and vice-versa. Because they are
computers, they don't mind running through thousands, even millions, of
these comparisons every day.
Yes, millions. For Usenet is huge.
Every day, Usenet users
pump upwards of 40 million characters a day into the system -- roughly
the equivalent of volumes A-G of the Encyclopedia Britannica. Obviously,
nobody could possibly keep up with this immense flow of messages. Let's
look at how to find conferences and discussions of interest to you.
The basic building block of Usenet is the newsgroup, which is a
collection of messages with a related theme (on other networks, these
would be called conferences, traffic king prussia forums, bboards or special-interest
groups). There are now more than 5,000 of these newsgroups, in several
diferent languages, covering everything from art to zoology, from
science fiction to South Africa.
Some public-access systems, typically the ones that work through
menus, try to make it easier by dividing Usenet into several broad
categories. Choose one of those and you're given a list of newsgroups in
that category. Then select the newsgroup you're interested in and start
reading.
Other systems let you compile your own "reading list" so that you
only see messages in conferences you want.
In both cases, conferences
are arranged in a particular hierarchy devised in the early 1980s.
Newsgroup names start with one of a series of broad topic names. For
example, newsgroups beginning with "comp." are about particular computer-
related topics.
These broad topics are followed by a series of more
focused topics (so that "comp.unix" groups are limited to discussion
about Unix).
The main hierarchies are:
bionet Research biology
bit.listserv Conferences originating as Bitnet mailing lists
biz Business
comp Computers and related subjects
misc Discussions that don't fit anywhere else
news News about Usenet itself
rec Hobbies, games and recreation
sci Science other than research biology
soc "Social" groups, often ethnically related
talk Politics and related topics
alt Controversial or unusual topics; not
carried by all sites
In addition, many host systems carry newsgroups for a particular
city, state or region.
For example, ne.housing is a newsgroup where
New Englanders look for apartments. A growing number also carry K12
newsgroups, which are aimed at elementary and secondary teachers and
students. And a number of sites carry clari traffic king prussia newsgroups, which is
actually a commercial service consisting of wire-service stories and
a unique online computer news service (more on this in chapter 10).
3.2 NAVIGATING USENET WITH nn
How do you dive right in? As mentioned, on some systems, it's all
done through menus -- you just keep choosing from a list of choices until
you get to the newsgroup you want and then hit the "read" command. On
Unix systems, however, you will have to use a "newsreader" program. Two
of the more common ones are known as rn (for "read news") and nn (for "no
news" -- becaus ... |
