1.\" Copyright (c) 1985, 1990 The Regents of the University of California. 2.\" All rights reserved. 3.\" 4.\" %sccs.include.redist.man% 5.\" 6.\" @(#)lptest.1 6.6 (Berkeley) 03/14/91 7.\" 8.Vx 9.Vx 10.Dd 11.Dt LPTEST 1 12.Os BSD 4.3 13.Sh NAME 14.Nm lptest 15.Nd generate lineprinter ripple pattern 16.Sh SYNOPSIS 17.Nm lptest 18.Op Ar length 19.Op Ar count 20.Sh DESCRIPTION 21.Nm Lptest 22writes the traditional "ripple test" pattern on standard output. 23In 96 lines, 24this pattern will print all 96 printable ASCII characters 25in each position. 26While originally created to test printers, it is quite 27useful for testing terminals, 28driving terminal ports for debugging purposes, 29or any other task where a quick supply of random data is needed. 30.Pp 31The 32.Ar length 33argument specifies the output line length if the the default 34length of 79 is inappropriate. 35.Pp 36The 37.Ar count 38argument specifies the number of output lines to be generated if 39the default count of 200 is inappropriate. 40Note that if 41.Ar count 42is to be specified, 43.Ar length 44must be also be specified. 45.Sh HISTORY 46.Nm Lptest 47appeared in 4.3 BSD. 48