plan9fox/sys/man/1/lp

.TH LP 1 
.SH NAME
lp \- printer output
.SH SYNOPSIS
.B lp
[
.I option ...
]
[
.I file ...
]
.SH DESCRIPTION
.I Lp
is a generalized output printing service.
It can be used to queue files for printing,
check a queue, or kill jobs in a queue.
The options are:
.TF -d\ \fIde\fP
.TP
.BI -d " dest"
Select the destination printer.
If
.I dest
is
.LR ? ,
list the currently available printers.
In the absence of
.LR -d ,
the destination is taken from the environment variable
.BR LPDEST .
Destination
.L stdout
is the standard output.
Destination
.L safari
is
.L /dev/lpt1data
line printer port on a 386 machine, assumed
to be connected to a PostScript printer.
Destinations 
.L hpdeskjet
and
.L bjc240l
are also
.L /dev/lpt1data
but assumed to be connected to an HP Deskjet 670 or
Canon BJC-240.
.I Lp
can print to any printer supported by
Ghostscript using syntax
.BI gs!device
where
.I device
is a Ghostscript output device.
See
.IR gs (1)
and the 
.L canonbjc240l 
entry in
.LR /sys/lib/lp/devices .
.TP
.B -k
Kill the job(s) given as subsequent arguments, instead of file names,
for the given destination.
.TP
.BI -p " proc"
The given processor is invoked.
The default processor is
.LR generic ,
which tries to do the right thing for regular text, HTML, or
.IR troff (1)
output.
If no processing is desired
.L noproc
may be specified.
.TP
.B -q
Print the queue for the given destination.
For some devices, include printer status.
.TP
.B -R
Stops and restarts the printer daemon.
If the printer is wedged, it is often useful to cycle the power on the printer
before running this command.
.PD
.PP
The remaining options may be used to affect the output at a given device.
These options may not be applicable to all devices.
.TF "-p\ \fIpr\fP"
.TP
.BI -c " n"
Print
.I n
copies.
.TP
.BI -f " font"
Set the font (default
.LR CW.11 ).
.TP
.BI -H
Suppress printing of header page.
.TP
.BI -i " n"
Select paper input tray.
.I n
may be a number 0-9, the word
.L man
for the manual feed slot, and/or
.L simplex
or
.L duplex
to get single or double sided output.
Multiple input tray options may be specified if they are
separated by commas.
.TP
.BI -l " n"
Set the number of lines per page to
.IR n .
.TP
.B -L
Print pages in landscape mode (i.e. turned 90 degrees).
.TP
.BI -m " v"
Set magnification to
.IR v .
.TP
.BI -n " n"
Print
.I n
logical pages per physical page.
.TP
.BI -o " list"
Print only pages whose page numbers appear in
the comma-separated
.I list
of numbers and ranges.
A range
.IB n - m
means pages
.I n
through
.IR m ;
a range
.BI - n
means from the beginning to page
.IR n ;
a range
.IB n -
means from page
.I n
to the end. 
.TP
.B -r
Reverse the order of page printing.
.TP
.BI -x " v"
Set the horizontal
offset of the print image, measured in inches.
.TP
.BI -y " v"
Set the vertical
offset of the print image, measured in inches.
.SH EXAMPLES
.TP 0
.L
eqn paper | troff -ms | lp -dsafari
Typeset and print a paper containing equations.
.TP
.L
pr -l100 file | lp -l100 -fCW.8
Print a file in a small font at 100 lines per page.
.TP
.L
lp -dstdout /dev/windows/3/window > doc.ps
Convert an image to a postscript file.
.SH SOURCE
.nf
.B /rc/bin/lp
.B /sys/src/cmd/lp
.SH SEE ALSO
.IR lp (8)
.br
P. Glick,
``A Guide to the Lp Printer Spooler''.
.SH BUGS
Not all options work with all output devices.
Any user can kill any job.