1.\" $OpenBSD: bcd.6,v 1.22 2019/09/08 22:43:46 schwarze Exp $ 2.\" 3.\" Copyright (c) 1988, 1991, 1993 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. Neither the name of the University nor the names of its contributors 15.\" may be used to endorse or promote products derived from this software 16.\" without specific prior written permission. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28.\" SUCH DAMAGE. 29.\" 30.\" @(#)bcd.6 8.1 (Berkeley) 5/31/93 31.\" 32.Dd $Mdocdate: September 8 2019 $ 33.Dt BCD 6 34.Os 35.Sh NAME 36.Nm bcd 37.Nd reformat input as punch cards 38.Sh SYNOPSIS 39.Nm 40.Op Fl l 41.Op Ar string ... 42.Nm 43.Fl d 44.Op Fl l 45.Sh DESCRIPTION 46The 47.Nm bcd 48command reads the given input and reformats it as an ASCII art 49representation of punched cards for the GE 635 and GE 645 computers 50used at Bell Labs in the late 1960s and early 1970s. 51Acceptable input are command line arguments or the standard input. 52.Pp 53The options are as follows: 54.Bl -tag -width Ds 55.It Fl d 56Decode punch cards on the standard input back to ASCII. 57.It Fl l 58Create or decode 80 column punch cards. 59The default is 48 columns. 60.El 61.Sh SEE ALSO 62.Xr ppt 6 63.Sh STANDARDS 64.Rs 65.%I ISO 1681:1973 66.%R "Information processing--Unpunched paper cards--Specification" 67.Re 68.Pp 69.Rs 70.%I ISO 1682:1973 71.%R "Information processing--80 columns punched paper cards--Dimensions and location of rectangular punched holes" 72.Re 73.Sh HISTORY 74The 75.Nm 76game first appeared in 77.At v6 . 78