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iconvconfig.8: New page for iconvconfig(8)
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
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'\" t -*- coding: UTF-8 -*-
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.\"
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.\" Copyright (C) 2014 Marko Myllynen <myllynen@redhat.com>
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.\"
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.\" %%%LICENSE_START(GPLv2+_DOC_FULL)
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.\" This is free documentation; you can redistribute it and/or
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.\" modify it under the terms of the GNU General Public License as
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.\" published by the Free Software Foundation; either version 2 of
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.\" the License, or (at your option) any later version.
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.\"
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.\" The GNU General Public License's references to "object code"
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.\" and "executables" are to be interpreted as the output of any
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.\" document formatting or typesetting system, including
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.\" intermediate and printed output.
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.\"
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.\" This manual is distributed in the hope that it will be useful,
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.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
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.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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.\" GNU General Public License for more details.
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.\"
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.\" You should have received a copy of the GNU General Public
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.\" License along with this manual; if not, see
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.\" <http://www.gnu.org/licenses/>.
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.\" %%%LICENSE_END
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.\"
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.TH ICONVCONFIG 8 2014-06-09 "GNU" "Linux System Administration"
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.SH NAME
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iconvconfig \- create iconv module configuration cache
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.SH SYNOPSIS
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.B iconvconfig
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.RI [ options ]
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.RI [ directory ]...
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.SH DESCRIPTION
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The
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.BR iconv(3)
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function internally uses
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.I gconv
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modules to convert to and from a character set.
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A configuration file is used to determine the needed modules
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for a conversion.
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Loading and parsing such a configuration file would slow down
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.BR iconv(3)
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using programs so a caching mechanism has been introduced.
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The
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.B iconvconfig
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program reads iconv module configuration files and writes
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a fastloading gconv module configuration cache file.
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In addition to the system provided gconv modules, user can specify
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custom gconv module directories with the environment variable
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.BR GCONV_PATH .
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However, iconv module configuration caching is only used when
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the environment variable
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.BR GCONV_PATH
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is not set.
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.SH OPTIONS
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.TP
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.B "\-\-nostdlib"
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Do not search the system default gconv directory,
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only the directories provided on the command line.
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.TP
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.BI \-o " outputfile" ", \-\-output=" outputfile
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Use
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.I outputfile
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for output instead of the system default cache location.
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.TP
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.BI \-\-prefix= pathname
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Set the prefix to be prepended to the system pathnames.
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See FILES, below.
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By default, the prefix is empty.
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Setting the prefix to
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.IR foo ,
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the gconv module configuration would be read from
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.IR foo/usr/lib/gconv/gconv-modules
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and the cache would be written to
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.IR foo/usr/lib/gconv/gconv-modules.cache .
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.TP
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.B "\-\-help"
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Print a usage summary and exit.
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.TP
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.B "\-\-usage"
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Print a short usage summary and exit.
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.TP
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.B "\-V, \-\-version"
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Print the version number, license, and disclaimer of warranty for
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.BR iconv .
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.SH EXIT STATUS
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Zero on success, non-zero on errors.
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.SH FILES
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.TP
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.I /usr/lib/gconv
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Usual default gconv module path.
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.TP
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.I /usr/lib/gconv/gconv-modules
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Usual default gconv module configuration.
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.TP
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.I /usr/lib/gconv/gconv-modules.cache
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Usual default gconv module configuration cache.
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.SH "SEE ALSO"
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.BR iconv (1),
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.BR iconv (3)
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