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NH 1
Overview
PP
The line printer system supports:
IP \(bu 3
multiple printers,
IP \(bu 3
multiple spooling queues,
IP \(bu 3
both local and remote
printers, and
IP \(bu 3
printers attached via serial lines that require
line initialization such as the baud rate.
LP
Raster output devices
such as a Varian or Versatec, and laser printers such as an Imagen,
are also supported by the line printer system.
PP
The line printer system consists mainly of the
following files and commands:
DS
TS
l l.
/etc/printcap   printer configuration and capability data base
/usr/sbin/lpd   line printer daemon, does all the real work
/usr/bin/lpr    program to enter a job in a printer queue
/usr/bin/lpq    spooling queue examination program
/usr/bin/lprm   program to delete jobs from a queue
/usr/sbin/lpc   program to administer printers and spooling queues
/var/run/printer        socket on which lpd listens
TE
DE
The file /etc/printcap is a master data base describing line
printers directly attached to a machine and, also, printers
accessible across a network. The manual page entry
IR printcap (5)
provides the authoritative definition of
the format of this data base, as well as
specifying default values for important items
such as the directory in which spooling is performed.
This document introduces some of the
information that may be placed
IR printcap .

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