lptest man page on 4.4BSD

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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
     useful for testing terminals, driving terminal ports for debugging pur‐
     poses, 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 inappropriate.  Note that if count is to
     be specified, length must be also be specified.

HISTORY
     Lptest appeared in 4.3BSD.

4.3 Berkeley Distribution      December 30, 1993     4.3 Berkeley Distribution
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