reformat input as punch
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:
- Decode punch cards on the standard input back to ASCII.
- 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.
bcd command first appeared in