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json_xs - JSON::XS commandline utility
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json_xs - JSON::XS commandline utility
json_xs [-v] [-f inputformat] [-t outputformat]
json_xs converts between some input and output formats (one of them is
JSON).
The default input format is json and the default output format is
json-pretty.
- -v
-
Be slightly more verbose.
- -f fromformat
-
Read a file in the given format from STDIN.
-
fromformat can be one of:
- json - a json text encoded, either utf-8, utf16-be/le, utf32-be/le
- cbor - CBOR (RFC 7049, the CBOR::XS manpage), a kind of binary JSON
- storable - a the Storable manpage frozen value
- storable-file - a the Storable manpage file (Storable has two incompatible formats)
- bencode - use the Convert::Bencode manpage, if available (used by torrent files, among others)
- clzf - the Compress::LZF manpage format (requires that module to be installed)
- eval - evaluate the given code as (non-utf-8) Perl, basically the reverse of ``-t dump''
- yaml - YAML (avoid at all costs, requires the YAML module :)
- string - do not attempt to decode the file data
- none - nothing is read, creates an
undef scalar - mainly useful with -e
- cbor - CBOR (via CBOR::XS)
- -t toformat
-
Write the file in the given format to STDOUT.
-
toformat can be one of:
- json, json-utf-8 - json, utf-8 encoded
- json-pretty - as above, but pretty-printed
- json-utf-16le, json-utf-16be - little endian/big endian utf-16
- json-utf-32le, json-utf-32be - little endian/big endian utf-32
- cbor - CBOR (RFC 7049, the CBOR::XS manpage), a kind of binary JSON
- storable - a the Storable manpage frozen value in network format
- storable-file - a the Storable manpage file in network format (Storable has two incompatible formats)
- bencode - use the Convert::Bencode manpage, if available (used by torrent files, among others)
- clzf - the Compress::LZF manpage format
- yaml - YAML
- dump - the Data::Dump manpage
- dumper - the Data::Dumper manpage
- string - writes the data out as if it were a string
- none - nothing gets written, mainly useful together with
-e
-
Note that Data::Dumper doesn't handle self-referential data structures
correctly - use ``dump'' instead.
- -e code
-
Evaluate perl code after reading the data and before writing it out again
- can be used to filter, create or extract data. The data that has been
written is in
$_, and whatever is in there is written out afterwards.
json_xs -t none <isitreally.json
``JSON Lint'' - tries to parse the file isitreally.json as JSON - if it
is valid JSON, the command outputs nothing, otherwise it will print an
error message and exit with non-zero exit status.
<src.json json_xs >pretty.json
Prettify the JSON file src.json to dst.json.
json_xs -f storable-file <file
Read the serialised Storable file file and print a human-readable JSON
version of it to STDOUT.
json_xs -f storable-file -t yaml <file
Same as above, but write YAML instead (not using JSON at all :)
json_xs -f none -e '$_ = [1, 2, 3]'
Dump the perl array as UTF-8 encoded JSON text.
<torrentfile json_xs -f bencode -e '$_ = join "\n", map @$_, @{$_->{"announce-list"}}' -t string
Print the tracker list inside a torrent file.
lwp-request http://cpantesters.perl.org/show/JSON-XS.json | json_xs
Fetch the cpan-testers result summary JSON::XS and pretty-print it.
Copyright (C) 2008 Marc Lehmann <json@schmorp.de>
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json_xs - JSON::XS commandline utility
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