Installation guide

The uucp command on DIGITAL UNIX systems differs from the uucp
command on ULTRIX systems. The DIGITAL UNIX uucp command has
some features that the ULTRIX uucp command does not have. The
DIGITAL UNIX uucp command does not support the −W option. For
more information about using the DIGITAL UNIX uucp command, see
uucp
(1).
• talk command
The talk command is the same as the ULTRIX talk command. For
information about using the talk command, see talk
(1).
• telnet command
The telnet command is the same as the ULTRIX telnet command.
For information about using telnet, see telnet
(1).
• Text formatting commands
The deroff, neqn, nroff, and tbl commands are similar to the
equivalent commands from the VAX ULTRIX system. Some of these
commands have different options, and VAX ULTRIX nroff drivers can
be ported to a DIGITAL UNIX system. (RISC ULTRIX nroff drivers
cannot be ported.) The default device for DIGITAL UNIX nroff is −Tlp;
the ULTRIX default is −T37 (Teletype Model 37). For more information
about these commands, see deroff
(1), neqn(1), nroff(1), and tbl(1).
• User information commands
Commands such as finger, w, and who are the same as the ULTRIX
equivalent commands. For more information about these commands,
see finger
(1), w(1), and who(1).
• Visual differences program
The dxdiff DECwindows visual differences program is the same as
the ULTRIX dxdiff program. For information about dxdiff, see
dxdiff
(1X).
2.4 Differences in Shells
The DIGITAL UNIX system supports three shells: the C shell (csh), the
Korn shell (ksh), and the Bourne shell (sh). This section gives a brief
overview of each shell’s features and syntax, highlighting differences
between it and the equivalent ULTRIX shell.
2.4.1 Differences in the C Shell
The C shell is an interactive command interpreter and a command
programming language that uses a syntax similar to the C programming
Overview of the DIGITAL UNIX User Environment 2–7