Silicon Graphics IRIS Workstation, User Manual

Page: 38 / 170

34 IRIS WORKSTATION GUIDE
Version 1.0
System Administration
/etc/ttytype This file maps terminal types to devices attached to an
IRIS Workstation. See Sections 6.8, 6.11, tset (1) and
ttytype (4).
/usr/lib/crontab This file contains entries for commands to be run at
fixed intervals by the cron (1M) daemon. See cron (1M).
/usr/lib/uucp/L-devices This file contains line speed entries for each port used
by uucp (1). See Section 6.9.
/usr/lib/uucp/L.sys This file contains information about sites that uucp (1)
can communicate with. See Section 6.9.
6.6 Naming an IRIS Workstation
Each IRIS Workstation is shipped with the name IRIS . To change this, edit the
file /etc/sys_id , insert a new name and reboot the system. Be sure that there are
no blanks in the name and that it is fewer than 14 characters long.
6.7 Adding a New Account
New accounts can be created on the IRIS Workstation by adding a line to the
file /etc/passwd . Additionally, the system administrator can set up the new user’s
environment with startup files, home directories, etc. These are largely matters
of personal taste and will not be covered here except in outline form.
1. Edit the file /etc/passwd . This file contains a line for each account on a
UNIX system. Each line has seven fields separated by colons (:). See
passwd (4).
1) Account Name
2) Encrypted User Password
3) User Number
4) Group Number
5) Name
6) Home Directory (default / )
7) Login Shell (default /bin/sh )
Figure 6-2 contains an example /etc/passwd file.
Add a line for the new account. Be sure that it contains a group
number and a unique account name and user number. The home
directory should be specified in the sixth field. The login shell
should be specified in the seventh field. For example, to add an
account for a user named peter the following line might be inserted:
peter::10:20:Peter Broadwell:/usr/staff/peter:/bin/csh
2. Edit the file /etc/group to include the new user in any additional
groups. Entries to this file are optional. See group (4). Figure 6-3
contains an example /etc/group file. Each line corresponds to a