mirror of https://github.com/mkerrisk/man-pages
125 lines
3.3 KiB
Groff
125 lines
3.3 KiB
Groff
.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved
|
|
.TH "ZCAT" P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
|
|
.\" zcat
|
|
.SH NAME
|
|
zcat \- expand and concatenate data
|
|
.SH SYNOPSIS
|
|
.LP
|
|
\fBzcat\fP \fB[\fP\fIfile\fP\fB...\fP\fB]\fP\fB\fP
|
|
.SH DESCRIPTION
|
|
.LP
|
|
The \fIzcat\fP utility shall write to standard output the uncompressed
|
|
form of files that have been compressed using the \fIcompress\fP utility.
|
|
It is the equivalent of \fIuncompress\fP \fB-c\fP. Input files are
|
|
not affected.
|
|
.SH OPTIONS
|
|
.LP
|
|
None.
|
|
.SH OPERANDS
|
|
.LP
|
|
The following operand shall be supported:
|
|
.TP 7
|
|
\fIfile\fP
|
|
The pathname of a file previously processed by the \fIcompress\fP
|
|
utility. If
|
|
\fIfile\fP already has the \fB.Z\fP suffix specified, it is used as
|
|
submitted. Otherwise, the \fB.Z\fP suffix is appended to the
|
|
filename prior to processing.
|
|
.sp
|
|
.SH STDIN
|
|
.LP
|
|
The standard input shall be used only if no \fIfile\fP operands are
|
|
specified, or if a \fIfile\fP operand is \fB'-'\fP
|
|
\&.
|
|
.SH INPUT FILES
|
|
.LP
|
|
Input files shall be compressed files that are in the format produced
|
|
by the \fIcompress\fP utility.
|
|
.SH ENVIRONMENT VARIABLES
|
|
.LP
|
|
The following environment variables shall affect the execution of
|
|
\fIzcat\fP:
|
|
.TP 7
|
|
\fILANG\fP
|
|
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.)
|
|
.TP 7
|
|
\fILC_ALL\fP
|
|
If set to a non-empty string value, override the values of all the
|
|
other internationalization variables.
|
|
.TP 7
|
|
\fILC_CTYPE\fP
|
|
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).
|
|
.TP 7
|
|
\fILC_MESSAGES\fP
|
|
Determine the locale that should be used to affect the format and
|
|
contents of diagnostic messages written to standard
|
|
error.
|
|
.TP 7
|
|
\fINLSPATH\fP
|
|
Determine the location of message catalogs for the processing of \fILC_MESSAGES
|
|
\&.\fP
|
|
.sp
|
|
.SH ASYNCHRONOUS EVENTS
|
|
.LP
|
|
Default.
|
|
.SH STDOUT
|
|
.LP
|
|
The compressed files given as input shall be written on standard output
|
|
in their uncompressed form.
|
|
.SH STDERR
|
|
.LP
|
|
The standard error shall be used only for diagnostic messages.
|
|
.SH OUTPUT FILES
|
|
.LP
|
|
None.
|
|
.SH EXTENDED DESCRIPTION
|
|
.LP
|
|
None.
|
|
.SH EXIT STATUS
|
|
.LP
|
|
The following exit values shall be returned:
|
|
.TP 7
|
|
\ 0
|
|
Successful completion.
|
|
.TP 7
|
|
>0
|
|
An error occurred.
|
|
.sp
|
|
.SH CONSEQUENCES OF ERRORS
|
|
.LP
|
|
Default.
|
|
.LP
|
|
\fIThe following sections are informative.\fP
|
|
.SH APPLICATION USAGE
|
|
.LP
|
|
None.
|
|
.SH EXAMPLES
|
|
.LP
|
|
None.
|
|
.SH RATIONALE
|
|
.LP
|
|
None.
|
|
.SH FUTURE DIRECTIONS
|
|
.LP
|
|
None.
|
|
.SH SEE ALSO
|
|
.LP
|
|
\fIcompress\fP , \fIuncompress\fP
|
|
.SH 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 .
|