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NetBSD 6.1.5 - man page for lptest (netbsd section 1)

LPTEST(1)				     BSD General Commands Manual				    LPTEST(1)

NAME
lptest -- generate lineprinter ripple pattern
SYNOPSIS
lptest [length [count]]
DESCRIPTION
lptest writes the traditional "ripple test" pattern on standard output. In 96 lines, this pattern will print all 96 printable ASCII characters in each position. While originally created to test printers, it is quite use- ful for testing terminals, driving terminal ports for debugging purposes, or any other task where a quick supply of random data is needed. The length argument specifies the output line length if the default length of 79 is inappropriate. The count argument specifies the number of output lines to be generated if the default count of 200 is inappro- priate. Note that if count is to be specified, length must be also be specified.
HISTORY
lptest appeared in 4.3BSD.
BSD
December 30, 1993 BSD


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