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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’.
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-h, --help
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Print help and exit
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-V, --version
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Print version and exit
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-s, --stringprep
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Prepare string according to nameprep profile
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-d, --punycode-decode
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Decode Punycode
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-e, --punycode-encode
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Encode Punycode
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-a, --idna-to-ascii
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Convert to ACE according to IDNA (default)
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-u, --idna-to-unicode
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Convert from ACE according to IDNA
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--allow-unassigned
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Toggle IDNA AllowUnassigned flag (default=off)
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--usestd3asciirules
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Toggle IDNA UseSTD3ASCIIRules flag (default=off)
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-t, --tld
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Check string for TLD specific rules
Only for --idna-to-ascii and --idna-to-unicode
(default=on)
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-p, --profile=STRING
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Use specified stringprep profile instead
Valid stringprep profiles are ‘Nameprep’, ‘iSCSI’,
‘Nodeprep’, ‘Resourceprep’, ‘trace’, and
‘SASLprep’.
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--debug
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Print debugging information (default=off)
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--quiet
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Silent operation (default=off)
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