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zcat (1)
  • zcat (1) ( Solaris man: Команды и прикладные программы пользовательского уровня )
  • zcat (1) ( FreeBSD man: Команды и прикладные программы пользовательского уровня )
  • zcat (1) ( Русские man: Команды и прикладные программы пользовательского уровня )
  • zcat (1) ( Linux man: Команды и прикладные программы пользовательского уровня )
  • >> zcat (1) ( POSIX man: Команды и прикладные программы пользовательского уровня )
  •  

    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 submitted. 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 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 original Standard can be obtained online at http://www.opengroup.org/unix/online.html .


     

    Index

    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


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