lpq
requests a status report from
lpd(8)
on the specified printers or jobs.
lpq
invoked without any arguments
reports on the printer given by the default printer
(see
-P
option).
The short (default) format simply lists
the printer, host, and numbers of jobs in the spool queue.
When using the long format (-l option),
for each job in a spool queue
lpq
reports the job identifier
which is generated from the user's name and originating host,
current rank in the queue,
the job number (which may be supplied to
lprm(1)
for removing a specific job),
the job description information,
and the total size in bytes.
If there is an error or other problem with the job,
this information may be modified to reflect the problems.
In a spool queue,
Job ordering is a modified FIFO (First in First Out),
modified by the job class and priority information.
The following options are available.
-A
Use authentication specified by the value of the AUTH environment variable.
-Ddebugoptions
Debugging is controlled using the
-D
option. This accepts a comma-separated list of debugging
settings. These settings take one of two forms:
facility=value ,
or
value
to set an overall default value.
-P printer
By default,
the destination printer
is taken from
the command line
printer
value,
then
the environment variables
PRINTER,
LPDEST,
NPRINTER,
NGPRINTER,
then first entry in the printcap information,
and and finally the default_printer entry from the
configuration file,
and then the compile time default.
Note that the special printer
all
has the same affect as the
-a
option.
-V
Print version information.
-a
All printers listed in the
printcap(5)
database are reported.
This list is generated by the server,
and may differ from what the user printcap information contains.
-l
Increase verbosity of the long display format.
A single -l options selects a short verbose display,
multiple -l options increase the verbosity.
-L
Use maximum verbosity for the long display format.
-s
Display a short, single line status summary for each queue and subqueue.
-tsleeptime
Forces
lpq
to periodically display the spool queues and then sleep
sleeptime
seconds between scans of the queue.
jobid ... all
The options are followed by
a list of jobids which
are used to select jobs of interest.
A jobid can be a user name,
a job identifier,
a job number,
or a glob based pattern which will be applied to the
job identifiers.
The all keyword will display all jobs and is the default option.
The
lpq
will report the status of the spool queue (enabled for spooling,
disabled for unspooling),
and the absence of a server if unspooling is enabled.
The
lpc(1)
command
lpc start <printer>
may be used to start the server if this is the case.
ENVIRONMENT
By default,
the destination printer
is taken from
the command line
dest
value,
then
the environment variables
PRINTER,
LPDEST,
NPRINTER,
NGPRINTER,
then first entry in the printcap information,
and and finally the default_printer entry from the
configuration file,
and then the compile time default.
EXIT STATUS
The following exit values are returned:
zero (0)
Successful completion.
non-zero (!=0)
An error occurred.
PRINTCAP INFORMATION
The printer names and other information is obtained by using a printcap
file or some other database.
The ${HOME}/.printcap
file can be used to specify user level options and configuration
information.
See
printcap(5)
for more information.
FILES
The files used by LPRng are set by values in the
printer configuration file.
The following are a commonly used set of default values.
/etc/lpd.conf LPRng configuration file
${HOME}/.printcap user printer description file
/etc/printcap system printer description file
/etc/lpd.perms printer permissions
/var/spool/printer* spool directories
/var/spool/printer*/printer lock file for queue control
/var/spool/printer*/control.printer queue control
/var/spool/printer*/active.printer active job
/var/spool/printer*/log.printer log file
Most of the diagnostics are self explanatory.
If you are puzzled over the exact cause of failure,
set the debugging level on (-D5) and run again.
The debugging information will
help you to pinpoint the exact cause of failure.
HISTORY
LPRng is a enhanced printer spooler system
with functionality similar to the Berkeley LPR software.
The LPRng mailing list is lprng@lprng.com;
subscribe by sending mail to lprng-request@lprng.com with
the word subscribe in the body.
The software is available from ftp://ftp.astart.com/pub/LPRng.
