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idn(1)                           User Commands                          idn(1)




NAME

       idn - Internationalized Domain Names command line tool


SYNOPSIS

       idn [OPTION]... [STRINGS]...


DESCRIPTION

       Internationalized Domain Name (IDN) convert STRINGS, or standard input.

       Command line interface to the internationalized domain name library.

       All strings are expected to be encoded in the preferred charset used by
       your  locale.   Use  --debug to find out what this charset is.  You can
       override the charset used by setting environment variable CHARSET.

       To process a string that starts with '-', for example '-foo', use  '--'
       to signal the end of parameters, as in: idn --quiet -a -- -foo

       Mandatory  arguments  to  long  options are mandatory for short options
       too.

       -h, --help
              Print help and exit

       -V, --version
              Print version and exit

       -s, --stringprep
              Prepare string according to nameprep profile

       -d, --punycode-decode
              Decode Punycode

       -e, --punycode-encode
              Encode Punycode

       -a, --idna-to-ascii
              Convert to ACE according to IDNA (default mode)

       -u, --idna-to-unicode
              Convert from ACE according to IDNA

       --allow-unassigned
              Toggle IDNA AllowUnassigned flag (default off)

       --usestd3asciirules
              Toggle IDNA UseSTD3ASCIIRules flag (default off)

       --no-tld
              Don't  check  string   for   TLD   specific   rules   Only   for
              --idna-to-ascii and --idna-to-unicode

       -n, --nfkc
              Normalize string according to Unicode v3.2 NFKC

       -p, --profile=STRING
              Use  specified  stringprep profile instead Valid stringprep pro-
              files: Nameprep iSCSI Nodeprep Resourceprep trace SASLprep

       --debug
              Print debugging information

       --quiet
              Silent operation


AUTHOR

       Written by Simon Josefsson.


REPORTING BUGS

       Report bugs to: bug-libidn@gnu.org
       GNU Libidn home page: <http://www.gnu.org/software/libidn/>
       General help using GNU software: <https://www.gnu.org/gethelp/>


COPYRIGHT

       Copyright (C) 2020 Simon Josefsson.  License GPLv3+: GNU GPL version  3
       or later <https://gnu.org/licenses/gpl.html>.
       This  is  free  software:  you  are free to change and redistribute it.
       There is NO WARRANTY, to the extent permitted by law.


SEE ALSO

       The full documentation for idn is maintained as a Texinfo  manual.   If
       the info and idn programs are properly installed at your site, the com-
       mand

              info idn

       should give you access to the complete manual.



idn 1.36                           July 2020                            idn(1)

libidn 1.36 - Generated Fri Jul 31 11:45:21 CDT 2020
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