Query: lpx
OS: ultrix
Section: 8
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
lpx(8) System Manager's Manual lpx(8) Name lpx - line printer exerciser Syntax /usr/field/lpx [ -h ] [ -ofile ] [ -pn ] [ -tm ] -ddev Description The line printer exerciser outputs a rolling character pattern to the printer. Five pages are output and then the printer will pause for 15 minutes (default). Then 5 more pages are output, followed by a pause. This pattern continues until the process receives a or a kill -15 pid. Disable the line printer queue of the printer to be tested before running Check the file to determine the line printer queue, and then run line printer control program to disable the printer. This will stop other jobs from interfering with the testing. Arguments You must specify the following function flag and its argument to the exerciser: -ddev The line printer device name and unit number to test as listed in the directory. For example, lp, lp1. Options The options are: -h Prints the help messages for the command. -ofile Saves the output diagnostics in file. -pn Sets pause for n minutes. During the pause period, will only exercise the controller, saving paper. The default value for n is 15. A value of n = 0 indicates no pause. -tm Specifies the run time in minutes (m). The default is to run until the process receives a or kill -15 pid. Restrictions If there is a need to run a system exerciser over an NFS link or on a diskless system there are some restrictions. For exercisers that need to write into a file system, such as the target file system must be writable by root. Also the directory, in which any of the exer- cisers are executed, must be writable by root because temporary files are written into the current directory. These latter restrictions are sometimes difficult to overcome because often NFS file systems are mounted in a way that prevents root from writing into them. Some of the restrictions may be overcome by copying the exerciser to another directory and then executing it. Examples The following example causes to exercise lp1 until the process receives a or kill -15 pid. % /usr/field/lpx -dlp1 The following example exercises lp for 120 minutes in the background. % /usr/field/lpx -t120 -dlp & See Also Guide to System Exercisers lpx(8)
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