---
name: "json_pp"
section: "1"
platform: "linux"
package: "perl"
version: "5.40.1-6+deb13u1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/json_pp"
---

# json\_pp(1)

JSON::PP command utility

## NAME

json\_pp - JSON::PP command utility

## SYNOPSIS

```
    json_pp [-v] [-f from_format] [-t to_format] [-json_opt options_to_json1[,options_to_json2[,...]]]
```

## DESCRIPTION

json\_pp converts between some input and output formats (one of them is JSON). This program was copied from json\_xs and modified.

The default input format is json and the default output format is json with pretty option.

## OPTIONS

### -f

```
    -f from_format
```

Reads a data in the given format from STDIN.

Format types:

- json

  as JSON

- eval

  as Perl code

### -t

Writes a data in the given format to STDOUT.

- null

  no action.

- json

  as JSON

- dumper

  as Data::Dumper

### -json\_opt

options to JSON::PP

Acceptable options are:

```
    ascii latin1 utf8 pretty indent space_before space_after relaxed canonical allow_nonref
    allow_singlequote allow_barekey allow_bignum loose escape_slash indent_length
```

Multiple options must be separated by commas:

```
    Right: -json_opt pretty,canonical
    Wrong: -json_opt pretty -json_opt canonical
```

### -v

Verbose option, but currently no action in fact.

### -V

Prints version and exits.

## EXAMPLES

```
    $ perl -e'print q|{"foo":"あい","bar":1234567890000000000000000}|' |\
       json_pp -f json -t dumper -json_opt pretty,utf8,allow_bignum

    $VAR1 = {
              'bar' => bless( {
                                'value' => [
                                             '0000000',
                                             '0000000',
                                             '5678900',
                                             '1234'
                                           ],
                                'sign' => '+'
                              }, 'Math::BigInt' ),
              'foo' => "\x{3042}\x{3044}"
            };
    $ perl -e'print q|{"foo":"あい","bar":1234567890000000000000000}|' |\
       json_pp -f json -t dumper -json_opt pretty

    $VAR1 = {
              'bar' => '1234567890000000000000000',
              'foo' => "\x{e3}\x{81}\x{82}\x{e3}\x{81}\x{84}"
            };
```

## SEE ALSO

JSON::PP, json\_xs

## AUTHOR

Makamaka Hannyaharamitu, \<makamaka\[at\]cpan.org\>

## COPYRIGHT AND LICENSE

Copyright 2010 by Makamaka Hannyaharamitu

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.