NAME

     dirconv — locate and transcode mixed-encoding file names

SYNOPSIS

     dirconv [-078dFhnpruvw] [-f charset] [-x regex] [path ...]

DESCRIPTION

     The dirconv utility recursively scans the specified path(s) and classifies files and
     directories according to whether their names are pure 7-bit ASCII, non-ASCII but valid
     UTF-8, double-UTF-8 (WTF-8), or neither.

     Names in the latter category are assumed to be Latin-1, unless a different encoding is
     specified with the -f option.

     By default, the dirconv utility then prints the names that are neither pure 7-bit ASCII nor
     valid UTF-8.

     The following options are available:

     -0      Print a NUL character rather than a newline after each path.  This option has no
             effect if the -n option was also specified.

     -7      Select names that are pure 7-bit ASCII.

     -8      Select names that contain non-ASCII characters but are not valid UTF-8.  This is the
             default unless the -7, -u and / or -w options are specified.

     -d      Show debugging information.  This option can be specified multiple times to increase
             the level of detail.

     -F      In conjunction with the -r option, force renaming a file when the target already
             exists.

     -f charset
             Specify the assumed character set for non-ASCII, non-UTF-8 names.  The default is
             “iso8859-1”.

     -h      Print a usage message and exit.

     -n      In conjunction with the -r option, show what would have happened, but do not
             actually rename any files.

     -p      Print the selected names.

     -r      Attempt to convert the selected names to UTF-8 and rename the files and directories.

     -u      Select names which contain non-ASCII characters and are valid UTF-8 but not WTF-8.

     -v      Print the source reversion number and exit.

     -w      Select names which seem to be WTF-8-encoded.

     -x regex
             Do not inspect files and directories whose unconverted names match the specified
             POSIX extended regular expression.

SEE ALSO

     iconv(1), regex(3).

AUTHORS

     The dirconv utility and this manual page were written by Dag-Erling Smørgrav <des@des.no>
     for the University of Oslo.

NOTES

     The dirconv utility works by attempting to decode each name as if it were a sequence of
     UTF-8 characters.  It is possible, but highly unlikely, that a random string of characters
     in a non-UTF single-byte encoding would look like a valid UTF-8 sequence.

     Reliable detection of WTF-8 is only possible if the original 8-bit encoding is known.

     The exclusion filter is applied before name conversion.  Character classes are unlikely to
     work as expected on unconverted names.

                                        November 18, 2014