Subject:  uploading papers to wsystems ftp area 

              File Transfer Protocol -- An Introduction

An easy way to post and retrieve files in the wsystems area on csf is via
anonymous ftp, a procedure supported between most Internet sites.  One
reaches csf via ftp with a one line command like

     ftp  csf.colorado.edu      or       ftp  128.138.173.17

where the last address is the unique Internet number which should work
if the verbal nickname on the left fails.  Once connection is made to
csf, you will be prompted for your username. Please reply with
"anonymous" (w/o the quotes).  (Sometimes there are intermediate steps
and one has to use "user anonymous".)  One is then prompted for a
password and most ftp sites appreciate your username@hostname in
response to the password prompt -- it enables the site to keep track
of users.  But most strings of letters will suffice for a password.

After the login procedure, one can obtain a listing of various conferences
with the "dir" command.  One can enter a particular conference/subdir with
the "cd" or change directory command.  One can go into wsystems with

ftp> cd wsystems

One can always distinguish between files, which can be downloaded, and
subdirectories by using the "dir" command.  As with any ftp area such
as csf, the letter "d" on the left of the screen (in response to the
"dir" command) means that the line entry refers to a directory.  
                               
Files at most easily downloaded through gopher, but ftp can be used for
downloading as well.  Most files in csf are ascii files and can be
downloaded with the simple
ftp> get filename
Unix is case sensitive -- the filename must be spelled exactly as it appears.

To back out of a particular subdirectory, use the standard unix/dos command
ftp> cd ..
(that's cd, a space, and two periods :-)
To determine what directory you are in, use
ftp> pwd     for present-working-directory

One can upload or leave a file off in any subdirectory called "incoming"
or  "input".  There is an input subdirectory within wsystems.  One can use

ftp> cd input      or      ftp> cd wsystems/input

to get into the input subdirectory, depending on your starting point.
One can then upload an ascii file with

ftp> put filename

If you would like to change the name of your file as you upload, use

ftp> put filename-on-local-machine  filename-for-posting-on-csf

People frequently put a paper up and then they think of a few changes
they would like to make.  So who is going to delete the old version to
make way for a new version?  There is some leeway here.  The input
subdirectory is "owned" by the (pseudo)user, ftp.  Anyone who comes in
by anonymous ftp can delete as well as write/put files to this
subdirectory.  Until your file is moved from the input
subdirectory, you can return via ftp and use the "del" command.

Once you are sure that you would like the paper retained, as is, 
please write one of the wsystem editors ..

Chris Chase-Dunn   CHRISCD@jhuvm.hcf.jhu.edu
Peter Grimes       P34D3611@jhuvm.hcf.jhu.edu
Susan Manning      ESM@jhuvm.hcf.jhu.edu
Barry Podobnik     PODOBNIK@jhuvm.hcf.jhu.edu 

to move your file from the input subdirectory to a more secure
directory.

Hope this works for you

... don roper