2014-06-11 08:09:47 +00:00
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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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iconv.1, ldd.1, accept.2, access.2, add_key.2, arch_prctl.2, bpf.2, chmod.2, chown.2, close_range.2, copy_file_range.2, execve.2, execveat.2, fanotify_mark.2, futex.2, futimesat.2, getpriority.2, intro.2, ioctl_tty.2, keyctl.2, link.2, membarrier.2, mkdir.2, mknod.2, mlock.2, mount.2, mount_setattr.2, open.2, open_by_handle_at.2, perf_event_open.2, pidfd_open.2, readlink.2, readv.2, rename.2, request_key.2, seccomp.2, sigaction.2, stat.2, statx.2, symlink.2, syscalls.2, umount.2, unlink.2, utimensat.2, wait.2, bsearch.3, fflush.3, getaddrinfo.3, getauxval.3, getopt.3, getsubopt.3, mkfifo.3, pthread_mutex_consistent.3, pthread_setname_np.3, pthread_tryjoin_np.3, scandir.3, sem_wait.3, stailq.3, strlen.3, strstr.3, termios.3, tsearch.3, wcslen.3, wcstok.3, wordexp.3, proc.5, capabilities.7, cgroups.7, fanotify.7, mount_namespaces.7, namespaces.7, path_resolution.7, pipe.7, posixoptions.7, user_namespaces.7, vdso.7, iconvconfig.8, ld.so.8: tstamp
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2021-08-27 00:44:07 +00:00
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.TH ICONVCONFIG 8 2021-08-27 "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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2014-06-11 10:29:16 +00:00
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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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programs that use
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.BR iconv (3),
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so a caching mechanism is employed.
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iconv.1, locale.1, localedef.1, memusage.1, memusagestat.1, mtrace.1, pldd.1, sprof.1, time.1, iconvconfig.8, ld.so.8, ldconfig.8, sln.8: Formatting fix: replace blank lines with .PP/.IP
Blank lines shouldn't generally appear in *roff source (other
than in code examples), since they create large vertical
spaces between text blocks.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-08-16 00:52:54 +00:00
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.PP
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2014-06-11 08:09:47 +00:00
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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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2014-06-11 10:29:16 +00:00
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a fast-loading gconv module configuration cache file.
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iconv.1, locale.1, localedef.1, memusage.1, memusagestat.1, mtrace.1, pldd.1, sprof.1, time.1, iconvconfig.8, ld.so.8, ldconfig.8, sln.8: Formatting fix: replace blank lines with .PP/.IP
Blank lines shouldn't generally appear in *roff source (other
than in code examples), since they create large vertical
spaces between text blocks.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-08-16 00:52:54 +00:00
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.PP
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2014-06-14 06:03:45 +00:00
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In addition to the system provided gconv modules, the 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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2015-01-28 10:03:31 +00:00
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However, iconv module configuration caching is used only 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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2014-06-23 20:18:37 +00:00
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.BR \-? ", " \-\-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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2014-06-23 20:18:37 +00:00
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.BR \-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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2017-12-04 19:49:42 +00:00
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Zero on success, nonzero 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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2021-01-21 08:29:38 +00:00
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.I /usr/lib/gconv/gconv\-modules
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2014-06-18 11:06:26 +00:00
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Usual system default gconv module configuration file.
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2014-06-11 08:09:47 +00:00
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.TP
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2021-01-21 08:29:38 +00:00
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.I /usr/lib/gconv/gconv\-modules.cache
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2014-06-18 11:06:26 +00:00
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Usual system gconv module configuration cache.
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2021-08-24 21:37:55 +00:00
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.PP
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Depending on the architecture,
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the above files may instead be located at directories with the path prefix
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.IR /usr/lib64 .
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iconv.1, localedef.1, access.2, execveat.2, fanotify_init.2, futex.2, ioctl_fat.2, mount.2, ftw.3, sd.4, tty_ioctl.4, fanotify.7, futex.7, posixoptions.7, iconvconfig.8: srcfix: Remove useless quotes from .SS and .SH sections
Signed-off-by: Stéphane Aulery <saulery@free.fr>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-03-08 02:03:52 +00:00
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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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