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  • From: Matrix Mole <matrixm AT sdf.lonestar.org>
  • To: baslinux AT lists.ibiblio.org
  • Subject: Re: [BL] screen: why use it?
  • Date: Tue, 1 Jun 2004 21:58:30 +0000 (UTC)

On Mon, 31 May 2004, Sindi Keesan wrote:

My question, why is it needed? On a remote machine, you can usually open
as many telnet windows as you need. Physically logged into linux machine,
I dial (not telnet) to my bbs and cannot open additional consoles.

But you dial in from you rlinux box right? Does the BBS allow a full fledged TCP stack to the rest of the internet? If you use screen with your bbs account, do you use from the bbs itself as opposed to being used on your home system?

you have the virtual consoles. I've never used more than a few console
windows at the same time, so why would someone need the power that

Screen lets you copy between screens (on the same or different consoles)
using keyboard commands. I can use lynx on one console or screen, and
pico on another, and copy bits and pieces between them. No mouse needed,
no X.

Ok, that could be really useful as opposed to trrying to bounce back and forth between virtual consoles to copy information (as I've done in the past).

There is also a smaller, simpler, program called something like splitvt,
which comes with one of the SW7.1 packages and dates back to around 1995.
The documentation is very poor. I finally figured out how to block by
learning screen first. You need to mark with the space bar and move
around with hjkl keys (sideways and up and down cursor movement), then use
a control+key combination to cut or paste or switch between two or more
split screens on one console.

This sounds very much like the key commands that are used in the vi editor. Slightly offtopic here, but I just discovered today throough playing aroudn that vi isn't installed by default in BL2, but it does have an editor that appears to be a stripped down version of pico. Steven: Did you have to compile that editor yourself to get it to be small enough to include with BL2, or is it just an old version of pico that is stand alone? Since I've installed the full fledged pine package already, this is mostly just "need to know" kind of information. :)

Screen from SW80 requires ncurses from the same. I could not find screen
for SW71. Let me know if you cannot get it to work and want help. I found
a later version than what comes with SW80, which works. There might be an
additional dependency.

I'll be having to install ncurses eventually anyway (its needed for bittorrent to work, along with having to install pyhon *shudder*). As for the dependecies for the SW80 screen, it wouldn't be too hard to discover what those dependencies are (installpkg screen.tgz then ldd screen). Although, I may, if I decide to install screen (which is still up in the air), use the version from SW91 as that's the version that I appear to be migrating towards just because of the extras it has in it (along with more recent version of certain packages).

--
Matrix Mole
matrixm AT sdf.lonestar.org
SDF Public Access UNIX System - http://sdf.lonestar.org
Running BasicLinux error free since May 15, 2004




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