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Man Pages


Manual Reference Pages  -  IDN (1)

NAME

idn - Internationalized Domain Names command line tool

CONTENTS

Synopsis
Description
Author
Copyright

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 profiles: ‘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: <http://www.gnu.org/gethelp/>

COPYRIGHT

Copyright © 2015 Simon Josefsson. License GPLv3+: GNU GPL version 3 or later <http://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 command
info idn
should give you access to the complete manual.
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idn 1.31 IDN (1) July 2015

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