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lpr/lpd printer spooling system


checkpc - check out the printcap database


checkpc [ -aflprsV ] [ -Aage[DHMS] ] [ -Ddebugflags ] [ -Pprinter ] [ -t size[kM] ]


Checkpc is used to check for the existence and correct permissions of entries in the printcap database. It is useful when installing a new printcap database and cleaning up existing printer spoolers.
-a Do not create accounting files (:af).
-f The fix flag will cause the checkpc program create and fix various files and permissions. It does this in a simple minded manner, and the program may have to be run several times until all permissions are correct. It also reports in extremely verbose details its actions.
-l Do not create log files (:lf).
-p Print verbose printcap information. Useful if interested in the printcap values.
-r remove junk or job files older than the age set by -A. You must set the age to a non-zero value otherwise no files are removed.
-s Do not create filter status files (:ps).
-A Age[DHMS]
Report junk or job files older than age. The age time can have a suffix days (D) hours (H), minutes (M), or seconds (S); default is days.
-D debugflags
Run the program with debugging flags. See the LPRng HOWTO for details of the flags actions.
-V Verbose mode.
-P printer
Process only the specified print queue.
-t size[kM]
Truncate log files (:lf) to the specified size in Kbytes or Mbytes (default is Mbytes).
-T serial-line
set process name and start feature test


If the -f(fix) option is specified and you do not run this as root, it will complain, but attempt to carry out the operations. This will lead to a large number of failures reports if the ownership and/or permissions are incorrect.


The files used by LPRng are set by values in the printer configuration file and by configuration options. The following are a commonly used set of default values.
/etc/lprng/lpd.conf                         LPRng configuration file
${HOME}/.printcap                           user printer description file
/etc/printcap                               printer description file
/etc/lprng/lpd.perms                        permissions
/var/run/lprng/lpd                          lock file for queue control
/var/spool/lpd                              spool directories
/var/spool/lpd/QUEUE/control                queue control
/var/spool/lpd/QUEUE/log                    trace or debug log file
/var/spool/lpd/QUEUE/acct                   accounting file
/var/spool/lpd/QUEUE/status                 status file


Patrick Powell <>.


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.


LPRng is a enhanced printer spooler system with functionality similar to the Berkeley LPR software. The LPRng developer mailing list is ; subscribe by visiting or sending mail to with the word subscribe in the body.
The software is available via


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