iconvconfig Man page

ICONVCONFIG(8) Linux System Administration ICONVCONFIG(8)


iconvconfig – create iconv module configuration cache


iconvconfig [options] [directory]…


The iconv function internally uses gconv modules to convert to and
from a character set. A configuration file is used to determine the
needed modules for a conversion. Loading and parsing such a configura‐
tion file would slow down programs that use iconv, so a caching
mechanism is employed.

The iconvconfig program reads iconv module configuration files and
writes a fast-loading gconv module configuration cache file. In addi‐
tion to the system provided gconv modules, the user can specify custom
gconv module directories with the environment variable GCONV_PATH.
However, iconv module configuration caching is used only when the envi‐
ronment variable GCONV_PATH is not set.


Do not search the system default gconv directory, only the
directories provided on the command line.

-o outputfile, –output=outputfile
Use outputfile for output instead of the system default cache

Set the prefix to be prepended to the system pathnames. See
FILES, below. By default, the prefix is empty. Setting the
prefix to foo, the gconv module configuration would be read from
foo/usr/lib/gconv/gconv-modules and the cache would be written
to foo/usr/lib/gconv/gconv-modules.cache.

-?, –help
Print a usage summary and exit.

Print a short usage summary and exit.

-V, –version
Print the version number, license, and disclaimer of warranty
for iconv.

Zero on success, non-zero on errors.

Usual default gconv module path.

Usual system default gconv module configuration file.

Usual system gconv module configuration cache.


iconv, iconv

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latest version of this page, can be found at

GNU 2014-07-08 ICONVCONFIG(8)