Man Pages

asa(1p) - phpMan asa(1p) - phpMan

Command: man perldoc info search(apropos)  


ASA(1P)                    POSIX Programmer's Manual                   ASA(1P)



PROLOG
       This manual page is part of the POSIX Programmer's Manual.  The Linux implementation of this interface may dif-
       fer (consult the corresponding Linux manual page for details of Linux behavior), or the interface  may  not  be
       implemented on Linux.

NAME
       asa - interpret carriage-control characters

SYNOPSIS
       asa [ file ... ]

DESCRIPTION
       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.

OPTIONS
       None.

OPERANDS
       file   A pathname of a text file used for input. If no file operands are specified, the standard input shall be
              used.


STDIN
       The standard input shall be used only if no file operands are specified; see the INPUT FILES section.

INPUT FILES
       The input files shall be text files.

ENVIRONMENT VARIABLES
       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 IEEE Std 1003.1-2001, Section 8.2, Internationalization Variables for  the  prece-
              dence 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  exam-
              ple, 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 writ-
              ten to standard error.

       NLSPATH
              Determine the location of message catalogs for the processing of LC_MESSAGES .


ASYNCHRONOUS EVENTS
       Default.

STDOUT
       The standard output shall be the text from the input file modified as described in the DESCRIPTION section.

STDERR
       None.

OUTPUT FILES
       None.

EXTENDED DESCRIPTION
       None.

EXIT STATUS
       The following exit values shall be returned:

        0     All input files were output successfully.

       >0     An error occurred.


CONSEQUENCES OF ERRORS
       Default.

       The following sections are informative.

APPLICATION USAGE
       None.

EXAMPLES
        1. The following command:


           asa file

       permits the viewing of file (created by a program using FORTRAN-style carriage-control characters) on a  termi-
       nal.


        2. The following command:


           a.out | asa | lp

       formats the FORTRAN output of a.out and directs it to the printer.


RATIONALE
       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.

FUTURE DIRECTIONS
       None.

SEE ALSO
       fort77, lp

COPYRIGHT
       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Stan-
       dard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base  Specifica-
       tions  Issue  6,  Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers, Inc and The
       Open Group. In the event of any discrepancy between this version and the original IEEE and The Open Group Stan-
       dard,  the  original  IEEE  and  The  Open Group Standard is the referee document. The original Standard can be
       obtained online at http://www.opengroup.org/unix/online.html .



IEEE/The Open Group                  2003                              ASA(1P)