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Command: bcd | Section: 6 | Source: OpenBSD | File: bcd.6
BCD(6) FreeBSD Games Manual BCD(6)
NAME
bcd - reformat input as punch cards
SYNOPSIS
bcd [-l] [string ...]
bcd -d [-l]
DESCRIPTION
The bcd command reads the given input and reformats it as an ASCII art
representation of punched cards for the GE 635 and GE 645 computers used
at Bell Labs in the late 1960s and early 1970s. Acceptable input are
command line arguments or the standard input.
The options are as follows:
-d Decode punch cards on the standard input back to ASCII.
-l Create or decode 80 column punch cards. The default is 48
columns.
SEE ALSO
ppt(6)
STANDARDS
ISO 1681:1973, Information processing--Unpunched paper
cards--Specification.
ISO 1682:1973, Information processing--80 columns punched paper
cards--Dimensions and location of rectangular punched holes.
HISTORY
The bcd game first appeared in Version 6 AT&T UNIX.
FreeBSD 14.1-RELEASE-p8 September 8, 2019 FreeBSD 14.1-RELEASE-p8