bcd
—
reformat input as punch cards
The bcd
command reads the given input and reformats it
in the form of punched cards. 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.
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.
The bcd
command first appeared in
3BSD.