Managing Your Print Jobs; Additional Resources - Red Hat LINUX 7.2 - OFFICIAL LINUX CUSTOMIZATION GUIDE Manual

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Your printer list will then consist of the printers you configured on the system as well as the printers
you imported from the saved configuration file. If the imported configuration file has a print queue
with the same name as an existing print queue on the system, the print queue from the imported file
will override the existing printer.
After importing the configuration file (with or without the merge command), you must restart the
printer daemon with the command /sbin/service lpd restart or by starting printconf and
clicking
Apply

21.10 Managing Your Print Jobs

When you send a print job to the printer daemon such as printing text file from Emacs or printing
an image from The GIMP, the print job is added to the print spool queue. The print spool queue is
a list of print jobs that have been sent to the printer and information about each print request such as
the status of the request, the username of the person who sent the request, the hostname of the system
that sent the request, the job number, and more. To view the list of print jobs in the print spool, open
a shell prompt and type the command lpq. The last few lines will look similar to the following:
Example 21–1 Example of lpq output
Rank
active user@localhost+902
If you want to cancel a print job, find the job number of the request with the command lpq and then
use the command lprm job number . For example, lprm 902 would cancel the print job in
Example 21–1, Example of lpq output. You must have proper permissions to cancel a print job. You
can not cancel print jobs that were started by other users unless you are logged in as root on machine
to which the printer is attached.
You can also print a file directly from a shell prompt. For example, the command lpr sample.txt
will print the text file sample.txt. The print filter determines what type of file it is and converts it
a format the printer can understand.

21.11 Additional Resources

To learn more about printing on Red Hat Linux, refer to the following resources.
21.11.1 Installed Documentation
• man printcap — The manual page for the /etc/printcap printer configuration file.
• map lpr — The manual page for the lpr command that allows you to print files from the
command line.
• man lpd — The manual page for the printer daemon.
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Owner/ID
Chapter 21:Printer Configuration
Class Job Files
A 902 sample.txt
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