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PROLOG | NAME | SYNOPSIS | DESCRIPTION | OPTIONS | OPERANDS | STDIN | INPUT FILES | ENVIRONMENT VARIABLES | ASYNCHRONOUS EVENTS | STDOUT | STDERR | OUTPUT FILES | EXTENDED DESCRIPTION | EXIT STATUS | CONSEQUENCES OF ERRORS | APPLICATION USAGE | EXAMPLES | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT |
ASA(1P) POSIX Programmer's Manual ASA(1P)
This manual page is part of the POSIX Programmer's Manual. The Linux
implementation of this interface may differ (consult the
corresponding Linux manual page for details of Linux behavior), or
the interface may not be implemented on Linux.
asa — interpret carriage-control characters
asa [file...]
The asa utility shall write its input files to standard output,
mapping carriage-control characters from the text files to line-
printer control sequences in an implementation-defined manner.
The first character of every line shall be removed from the input,
and the following actions are performed.
If the character removed is:
<space> The rest of the line is output without change.
0 A <newline> is output, then the rest of the input line.
1 One or more implementation-defined characters that causes
an advance to the next page shall be output, followed by
the rest of the input line.
+ The <newline> of the previous line shall be replaced with
one or more implementation-defined characters that causes
printing to return to column position 1, followed by the
rest of the input line. If the '+' is the first character
in the input, it shall be equivalent to <space>.
The action of the asa utility is unspecified upon encountering any
character other than those listed above as the first character in a
line.
None.
file A pathname of a text file used for input. If no file
operands are specified, the standard input shall be used.
The standard input shall be used if no file operands are specified,
and shall be used if a file operand is '−' and the implementation
treats the '−' as meaning standard input. Otherwise, the standard
input shall not be used. See the INPUT FILES section.
The input files shall be text files.
The following environment variables shall affect the execution of
asa:
LANG Provide a default value for the internationalization
variables that are unset or null. (See the Base Definitions
volume of POSIX.1‐2008, Section 8.2, Internationalization
Variables for the precedence of internationalization
variables used to determine the values of locale
categories.)
LC_ALL If set to a non-empty string value, override the values of
all the other internationalization variables.
LC_CTYPE Determine the locale for the interpretation of sequences of
bytes of text data as characters (for example, single-byte
as opposed to multi-byte characters in arguments and input
files).
LC_MESSAGES
Determine the locale that should be used to affect the
format and contents of diagnostic messages written to
standard error.
NLSPATH Determine the location of message catalogs for the
processing of LC_MESSAGES.
Default.
The standard output shall be the text from the input file modified as
described in the DESCRIPTION section.
None.
None.
None.
The following exit values shall be returned:
0 All input files were output successfully.
>0 An error occurred.
Default.
The following sections are informative.
None.
1. The following command:
asa file
permits the viewing of file (created by a program using FORTRAN-
style carriage-control characters) on a terminal.
2. The following command:
a.out | asa | lp
formats the FORTRAN output of a.out and directs it to the
printer.
The asa utility is needed to map ``standard'' FORTRAN 77 output into
a form acceptable to contemporary printers. Usually, asa is used to
pipe data to the lp utility; see lp.
This utility is generally used only by FORTRAN programs. The standard
developers decided to retain asa to avoid breaking the historical
large base of FORTRAN applications that put carriage-control
characters in their output files. There is no requirement that a
system have a FORTRAN compiler in order to run applications that need
asa.
Historical implementations have used an ASCII <form-feed> in response
to a 1 and an ASCII <carriage-return> in response to a '+'. It is
suggested that implementations treat characters other than 0, 1, and
'+' as <space> in the absence of any compelling reason to do
otherwise. However, the action is listed here as ``unspecified'',
permitting an implementation to provide extensions to access fast
multiple-line slewing and channel seeking in a non-portable manner.
None.
fort77(1p), lp(1p)
The Base Definitions volume of POSIX.1‐2008, Chapter 8, Environment
Variables
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2013 Edition, Standard for Information
Technology -- Portable Operating System Interface (POSIX), The Open
Group Base Specifications Issue 7, Copyright (C) 2013 by the
Institute of Electrical and Electronics Engineers, Inc and The Open
Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1
applied.) In the event of any discrepancy between this version and
the original IEEE and The Open Group Standard, the original IEEE and
The Open Group Standard is the referee document. The original
Standard can be obtained online at http://www.unix.org/online.html .
Any typographical or formatting errors that appear in this page are
most likely to have been introduced during the conversion of the
source files to man page format. To report such errors, see
https://www.kernel.org/doc/man-pages/reporting_bugs.html .
IEEE/The Open Group 2013 ASA(1P)
Pages that refer to this page: fort77(1p)