JSON_XS(1)            User Contributed Perl Documentation           JSON_XS(1)


NAME
       json_xs - JSON::XS commandline utility

SYNOPSIS
          json_xs [-v] [-f inputformat] [-t outputformat]

DESCRIPTION
       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".

OPTIONS
       -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, CBOR::XS), a kind of binary JSON
           storable - a Storable frozen value
           storable-file - a Storable file (Storable has two incompatible
           formats)
           bencode - use Convert::Bencode, if available (used by torrent
           files, among others)
           clzf - Compress::LZF 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 format (requires that module to be installed)
           string - do not attempt to decode the file data
           none - nothing is read, creates an "undef" scalar - mainly useful
           with "-e"
       -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, CBOR::XS), a kind of binary JSON
           cbor-packed - CBOR using extensions to make it smaller
           storable - a Storable frozen value in network format
           storable-file - a Storable file in network format (Storable has two
           incompatible formats)
           bencode - use Convert::Bencode, if available (used by torrent
           files, among others)
           clzf - Compress::LZF format
           yaml - YAML::XS format
           dump - Data::Dump
           dumper - Data::Dumper
           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.

EXAMPLES
          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.

AUTHOR
       Copyright (C) 2008 Marc Lehmann <json@schmorp.de>

perl v5.38.0                      2023-07-25                        JSON_XS(1)