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 6.5 (Berkeley) 07/24/90 7.\" 8.Dd 9.Dt LPTEST 1 10.Os BSD 4.3 11.Sh NAME 12.Nm lptest 13.Nd generate lineprinter ripple pattern 14.Sh SYNOPSIS 15.Nm lptest 16.Op Ar length 17.Op Ar count 18.Sh DESCRIPTION 19.Nm Lptest 20writes the traditional "ripple test" pattern on standard output. 21In 96 lines, 22this pattern will print all 96 printable ASCII characters 23in each position. 24While originally created to test printers, it is quite 25useful for testing terminals, 26driving terminal ports for debugging purposes, 27or any other task where a quick supply of random data is needed. 28.Pp 29The 30.Ar length 31argument specifies the output line length if the the default 32length of 79 is inappropriate. 33.Pp 34The 35.Ar count 36argument specifies the number of output lines to be generated if 37the default count of 200 is inappropriate. 38Note that if 39.Ar count 40is to be specified, 41.Ar length 42must be also be specified. 43.Sh HISTORY 44.Nm Lptest 45appeared in 4.3 BSD. 46