centos man page for zcat

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

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

NAME
       zcat - expand and concatenate data

SYNOPSIS
       zcat [file...]

DESCRIPTION
       The zcat utility shall write to standard output the uncompressed form of files that have been compressed using the compress utility.  It is
       the equivalent of uncompress -c. Input files are not affected.

OPTIONS
       None.

OPERANDS
       The following operand shall be supported:

       file   The pathname of a file previously processed by the compress utility. If file already has the .Z suffix specified, it is used as sub-
	      mitted. Otherwise, the .Z suffix is appended to the filename prior to processing.

STDIN
       The standard input shall be used only if no file operands are specified, or if a file operand is '-' .

INPUT FILES
       Input files shall be compressed files that are in the format produced by the compress utility.

ENVIRONMENT VARIABLES
       The following environment variables shall affect the execution of zcat:

       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 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).

       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 .

ASYNCHRONOUS EVENTS
       Default.

STDOUT
       The compressed files given as input shall be written on standard output in their uncompressed form.

STDERR
       The standard error shall be used only for diagnostic messages.

OUTPUT FILES
       None.

EXTENDED DESCRIPTION
       None.

EXIT STATUS
       The following exit values shall be returned:

	0     Successful completion.

       >0     An error occurred.

CONSEQUENCES OF ERRORS
       Default.

       The following sections are informative.

APPLICATION USAGE
       None.

EXAMPLES
       None.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       compress, uncompress

COPYRIGHT
       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
       ogy -- 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 original Standard can  be  obtained
       online at http://www.opengroup.org/unix/online.html .

IEEE
/The Open Group						       2003								  ZCAT(1P)