Summary of Printing Differences

The SunOS release 5.5 LP print service replaces the SunOS release 4.x printing facilities, which were provided by the lpd daemon and lpr, lpq, lprm, and lpc commands. Admintool lets you set up and administer printers through a graphical user interface. You can also use a command line interface for the LP print service to administer SunOS release 5.5 printers. For detailed information about Admintool and the command-line interface to the LP service, see System Administration Guide, Volume I.

The services provided by the /etc/printcap file in SunOS release 4.x are handled in the Solaris 2.5 operating environment by the terminfo database and by the files in the /etc/lp directory.

Print Commands and the Compatibility Package

You can still use many SunOS release 4.x print commands if the system is running the SunOS/BSD Source Compatibility Package. Compatibility mode uses SunOS release 4.x command names as an interface to underlying Solaris 2.5 LP print services and does not actually run them the way a SunOS release 4.x system would. When a user types SunOS release 4.x commands to set up printing or to print files from a Solaris 2.5 system, the commands create message files that are handled by the SunOS release 5.5 LP print service scheduler.

Solaris 2.5 printing provides additional capabilities not available in SunOS release 4.x systems. These capabilities enable you to control forms, print wheels, and interface programs, and to set up network print services.

Using Printer Commands

As discussed in a previous section, you can continue to use SunOS release 4.x print commands if you have the SunOS/BSD Source Compatibility Package. Table 11-1 shows the basic user print command equivalents.

Table 11-1

SunOS Release 4.x	SunOS Release 5.5	Function
lpr filename	lp filename	Print a file to the default printer
lpr -Pprinter filename	lp -d printer file	Print a file to a specific printer
lpq	lpstat -o printer	Look at a list of the files waiting to print on the default printer
check /etc/printcap	lpstat -d	Determine which is the default printer
check /etc/printcap	lpstat -a	Determine which printers are available
lprm jobnumber	cancel jobid	Cancel a print job on the default printer

Using SunOS 5.5 Printer Administration Commands

This section describes differences between printer setup and administration on SunOS release 4.x and Solaris 2.5 systems. All the underlying system services described are available only in the Solaris 2.5 operating environment. The SunOS release 4.x counterparts are not available even in compatibility mode.

You must use the System V printer administration commands, lpadmin(1M) and lpsystem(1M) instead. Use the terminfo database and the configuration files in the /etc/lp directory instead. See System Administration Guide, Volume II for details.

Table 11-2 shows the command equivalents for setting up printing.

Table 11-2

SunOS Release 4.x	SunOS Release 5.5	Function
lpc	lpadmin	Control line printer functions
/etc/printcap	terminfo database and /etc/lp/printers/ printername/*	File that defines printer functions
/var/spool	/var/spool/lp	Directory where printing system stores spool and lock files
Not available	lpmove	Move print queues between printers
lpc down	reject	Stop queueing to a printer

Printing troff

In SunOS release 4.x, the following command sent your file to the default printer.

% troff filename

In the Solaris 2.5 operating environment, you must specify that you want the file printed by piping (|) the output to the lp command. Table 11-3 shows the SunOS release 5.5 troff commands.

Table 11-3 troff

SunOS 5. 2 Command	Function
troff file |/usr/lib/lp/postscript/dpost|lp	Sends to default printer that supports troff jobs
troff file |/usr/lib/lp/postscript/dpost|lp -dprinter	Sends to a particular printer
troff file |lp -Ttroff	Sends to any printer that supports troff jobs