Unix/Linux Go Back    


Linux 2.6 - man page for asa (linux section 1posix)

Linux & Unix Commands - Search Man Pages
Man Page or Keyword Search:   man
Select Man Page Set:       apropos Keyword Search (sections above)


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

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 implementa-
	      tion-defined characters that causes printing to return to column position  1,  fol-
	      lowed  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, Inter-
	      nationalization 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  interna-
	      tionalization 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  argu-
	      ments and input files).

       LC_MESSAGES
	      Determine the locale that should be used to affect the format and contents of diag-
	      nostic messages written 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 terminal.

	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 char-
       acters 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 implementa-
       tion 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, Standard for Information Technology  --  Portable	Operating  System
       Interface  (POSIX), The Open Group Base Specifications 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
       Standard, the original IEEE and The Open Group Standard is the referee document. The orig-
       inal Standard can be obtained online at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group			       2003					   ASA(P)
Unix & Linux Commands & Man Pages : ©2000 - 2018 Unix and Linux Forums


All times are GMT -4. The time now is 03:11 PM.