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NOTE: CentOS Enterprise Linux 5 is built from the Red Hat Enterprise Linux source code. Other than logo and name changes CentOS Enterprise Linux 5 is compatible with the equivalent Red Hat version. This document applies equally to both Red Hat and CentOS Enterprise Linux 5.

33.8. Managing Print Jobs

When you send a print job to the printer daemon, such as printing a 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 the job number, and more.

During the printing process, the Printer Status icon appears in the Notification Area on the panel. To check the status of a print job, double click the Printer Status, which displays a window similar to Figure 33.12, “GNOME Print Status”.

GNOME Print Status

Figure 33.12. GNOME Print Status

To cancel a specific print job listed in the GNOME Print Status, select it from the list and select Edit => Cancel Documents from the pulldown menu.

To view the list of print jobs in the print spool from a shell prompt, type the command lpq. The last few lines look similar to the following:

Rank   Owner/ID              Class  Job Files       Size Time 
active [email protected]+902    A      902 sample.txt  2050 01:20:46

Example 33.1. Example of lpq output

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 33.1, “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 the 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 prints the text file sample.txt. The print filter determines what type of file it is and converts it into a format the printer can understand.


 
 
  Published under the terms of the GNU General Public License Design by Interspire