Astronomy Computer Manual


CONTENTS

Introduction
How to Login
Available Software and Help
Files and the Filesystem
Editors
Printing
Shells
Mail
Spam Filtering
Backing up your DATA (Exabyte)
Undergraduate and MSc. PC's
X Windows
Homepages and Html
How to assign an IP Number


Manual History:

written by Sandra Scott, revised by Stefan Mochnacki and Hugh Zhao

rev 0.0 January 1993 (with contributions from Stefan Mochnacki)
rev 1.0 August 1994
rev 1.1pc September 1995 (updated to include pc's)
rev 2.0 November 1996 (updated and partially translated to html)
rev 2.1 April 1997 (sections added and translated to html)
rev 2.2 September 1997 (PC section added)
rev 3.0 September 2000 (Stefan Mochnacki, Hugh Zhao)


Introduction


This document is an introduction to the computers of the Astronomy Department at the University of Toronto. Although many aspects of the system will be discussed, this document is only designed as a starting place. For further reading refer to the guides mentioned in the 'Help' section. This document does not discuss applications software such as IRAF and TeX.

UNIX is case sensitive, so be careful which case you are typing in. If a command is given in lower case (as it usually is) then type it in lower case! All commands are typed in bold face in this manual. The command line prompt is represented by:

lepus%

The departmental computers currently consist of the server "lepus", eight "ungrad" lab computers, and several PCs dedicated to specific tasks (scanning, presentations, colour printing). The server "lepus", in the fall of 2000, is a Pentium-III running RedHat Linux and the Apache web server. Prior to that, lepus is a Sparc10 41 with 32Mb of memory, 1.7Gb disk, and an Exabyte tape drive. Lepus serves all M.Sc. students, administrative staff, some undergraduates, and the library. Accounts are free of charge.

The department's Exabyte may be used by non-lepus users at a rate of $15.00/hour

Computer security is taken very seriously in the Astronomy Department. Department computer account holders are not permitted to 'lend' their account to anyone, including other members of the department. Accounts are for the sole use of the holder. Accounts are for academic use only. You are not permitted to exploit any security bugs. Account priviledges will be revoked for any misuse of computers. We are governed by the University's Appropriate Use of Information Technology

The system manager, referred to throughout this manual, is Hugh Zhao.