Carriage-Control

Fortran carriage-control grew out of the capabilities of the equipment used when Fortran was originally developed. For similar historical reasons, an operating system derived from the UNIX operating system, does not have Fortran carriage control, but you can simulate it in two ways.

• Use the asa filter to transform Fortran carriage-control conventions into the UNIX carriage-control format (see the asa (1) man page) before printing files with the lpr command.

• f77: For simple jobs, use OPEN(N, FORM='PRINT') to enable single or double spacing, formfeed, and stripping off of column one. It is legal to reopen unit 6 to change the form parameter to PRINT. For example:

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        OPEN( 6, FORM='PRINT')

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  You can use lp(1) to print a file that is opened in this manner.