4.3BSD - /usr/man/cat1/lptest.0

LPTEST(1)                                                            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  debug‐
       ging purposes, or any other task where a quick supply of random data is
       needed.

       The length argument specifies the output line length if the 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.

SEE ALSO
BUGS
4.3 Berkeley Distribution       April 29, 1985                       LPTEST(1)