HENSA in the UK

Rob Harper Rob.Harper at CSC.FI
Mon Oct 26 06:07:18 EST 1992


                   THE HENSA UNIX ARCHIVE 
                  ========================

                  at the University of Kent


HENSA (Higher Education National Software Archive) is a new NRS domain
established to provide access to various software archives for the
academic community at large. Currently it supports two archives,

      unix.hensa.ac.uk

based at the University of Kent, providing mainly UNIX software, and

      micros.hensa.ac.uk

based at Lancaster University, providing software mainly for PC's
(formerly pdsoft at uk.ac.lancs.pdsoft).

This document describes the HENSA UNIX Archive only.

The new HENSA UNIX Archive provides mostly UNIX software and is
accessible via an interactive browsing facility, called fbr as well
e-mail, DARPA ftp and NI-FTP (Blue Book) services.  This archive
currently makes available a large part of the uunet software archive
including usenet's comp.sources and the gnu sources as well as all the
existing Netlib software and an archive of miscellaneous UNIX items.
The archive is updated daily and is rapidly increasing its software
base.

Accessing the HENSA UNIX Archive Using The Interactive File Browser FBR
=======================================================================

Why use fbr?
------------
When you login to Archive you are put into a restricted shell sitting
at the top of three separate databases. Using the shells UNIX-like
commands you are able to traverse the databases, searching for and
viewing files at will.  You can then initiate the transfer of a file
via e-mail simply by using the sendme command. This means you can
examine files before committing yourself to the transfer.

How easy is it to use fbr?
--------------------------
Very easy! Once you have logged in the following commands are available

	pwd	:    print current directory
	cd	:    change current directory
	ls	:    list files
	find	:    find file or directory by name
	du	:    show space in kilobytes used by files or directories
	cat	:    display files on the terminal
	grep	:    search for a pattern in a file
	ftp	:    show how to get files via ftp
	sendme	:    transfer a file via e-mail to the user
	help	:    give help (general or on a specific command)
	how	:    give a brief description of a command
	echo	:    print arguments
	version	:    print fbr version number
	quit	:    quit fbr

For a brief overview of fbr use `help intro' and for more information
on a command, `help <command>'.  The shell supports pattern matching
too, allowing you to find all the files containing a common string. For
example

	find *gnu*

will return the paths of all files which contain the string "gnu" in
their name.

Having located the file you require you can transfer it via e-mail by
using

      sendme  file

when sat in the library the file resides in, or

      sendme  path_of_file

otherwise.  (Replace file by the actual filename).  For example, if you
want to transfer the file lagrange from the library
netlib/matlab/approximation use the request:

      sendme  netlib/matlab/approximation/lagrange

You can e-mail software from any of the three databases.  Binary files
are automatically uuencoded for transmission via e-mail.  Large files
are sent in separate 64K pieces.  A special header is included to
assist in re-assembling the pieces correctly.

The misc library contains compressed (non-ASCII) files which are more
efficiently transferred via ftp.  Saying ftp  will give you all the
information necessary to perform an ftp transfer (using NI-FTP or DARPA
ftp).  If you use NI-FTP it must be executed remotely, you cannot
NI-FTP transfer files from within fbr.

How do I login to the HENSA archive?
------------------------------------
The interactive browser is available 24 hours a day. It is accessible
over the JANET X.25 network with the address:

      archive at unix.hensa.ac.uk

(or 000049200900 if you do not have NRS)

Once connected, you are greeted with the banner and request:


	Welcome to HENSA - the Higher Education National Software Archive
                   at the University of Kent at Canterbury

	Use the login name `archive' to access the Unix archive.

	login:archive

	Welcome to the UK Source Archive at the University 
	           of Kent at Canterbury.

	Please enter your email address:<your e-mail address>

After responding with your e-mail address you will be placed inside the
fbr restricted shell. Use the help command for up to date details of
what commands are available.

What software is available?
---------------------------
There are currently three databases available for you to browse:
netlib, misc and uunet.

Netlib
......

The netlib database contains mostly Fortran software aimed at the
science and engineering community, along with a growing amount of C
software.  For previous Netlib users, this is the archive which is
accessed when you e-mail requests to Netlib.  It is kept in step with
the original Netlib at AT&T Bell Labs.

The most popular software available from Netlib includes

		  	matlab	:    the MATLAB User Group software library
		 	f2c	:    the FORTRAN to C translator from AT&T
		 	toms	:    the ACM algorithms
       lapack, linpack, eispack :   linear algebra libraries

Misc
....

The misc database contains an archive of miscellaneous UNIX software,
some complete Netlib libraries and a small amount of VMS software.  The
software includes:

	DIRT	:  Design In Real Time. An X User Interface Builder by 
		   R. Hesketh
	UPS	:  Mark Russell's graphical debugger for C and Fortran
	GSPreview:  An X interface to the Ghostscript interpreter by 
		    R. Hesketh
	SGML	:  A UNIX port (by James Clark) of the  SGML Users' 
		   Group SGML Parser  Materials, ARCSGML 1.0.
	RALTEX	:  The TEX software formerly distributed by UMIST
	RAL-CGM	:  Tools for generating, converting, viewing and plotting 
   		   Computer Graphics Metafiles (CGMs)
	eispack, linpack: Complete Netlib libraries
	apt, decs, pol, port: Toolpack tools for FORTRAN software 
		   -- compiled for a Sun4

Uunet
.....

The uunet database is a `shadow' copy of the uunet software archive.
It contains approximately 700 Mb of freely available UNIX software.
Included are:

	USNET's comp.sources archive
	GNU sources
	networking and protocols
	mail : including PP, MMDF and sendmail
	X11R5 and X applications

Other Access Methods
====================

FTP
---

HENSA supports DARPA ftp and is available to users on the internet.
Users can access both Archive and Netlib software this way.

Using ftp you will gain access to HENSA 

	login: anonymous
	password: <your e-mail address>

The NI-FTP (Blue Book) request

	<ARCHIVE>path-of-file   from   uk.ac.hensa.unix
	Username: guest
	Password: <your e-mail address>

will retrieve the requested file.

E-mail
------

Archive
.......

Users can access the HENSA Archive via e-mail. To obtain a specific
file  e-mail a  message to

      archive at unix.hensa.ac.uk

containing the single line

      send  path-of-file

For example, if you require the index from the lapack directory use the
command

      send netlib/lapack/index

The archive server only understands HENSA commands so don't include any
extraneous text in the message body.  Users can transfer software,
amend the size of a mail transfer and choose a particular method of
encoding.  A list of HENSA commands can be obtained by mailing
archive at unix.hensa.ac.uk with the message

	help

Any queries/problems/suggestions concerning the HENSA Archive should be
e-mailed to the Archive server administrator at

      archive-admin at unix.hensa.ac.uk

Netlib
......

Users can access the Netlib database via e-mail.  

A new e-mail user should e-mail:

      netlib at unix.hensa.ac.uk

with a message containing the single line

      send  index

The Netlib index will be e-mailed back detailing all the information
needed to find and retrieve software.  The commands recognised by the
Netlib server are different to the commands recognised by the Archive
server allowing much more flexibility and access to extra features.

For existing Netlib users, use all the Netlib commands you have been
using previously. The command language for this sever has not changed
(only its e-mail address).

Any queries/problems/suggestions concerning Netlib should be e-mailed
to the Netlib server administrator at

      netlib-admin at unix.hensa.ac.uk

 ~ Rob Harper                    ~ E-mail:          harper at convex.csc.fi    
 ~ Finnish State Computer Cent



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