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Top Forums Shell Programming and Scripting How to segregate a section from big file? Post 303026649 by Peasant on Saturday 1st of December 2018 02:44:08 AM
Old 12-01-2018
I suppose you are reading the following document :
AWS IP Address Ranges - Amazon Web Services

If we look at the example 5 and 6 in the documentation, it is quite close to your requirement.
You do not need to pipe the json parser output to additional shell commands to parse, it should be able to parse JSON format as you wish.
See if this is what you want..
Code:
curl https://ip-ranges.amazonaws.com/ip-ranges.json | jq '.prefixes[] | select (.region=="us-west-2") | .ip_prefix'


This is my first time using the jq tool, the one used is from debian repositories.
Code:
jq --version
jq-1.5-1-a5b5cbe

Regards
Peasant.
This User Gave Thanks to Peasant For This Post:
 

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

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 storable - a Storable frozen value storable-file - a Storable file (Storable has two incompatible formats) clzf - Compress::LZF format (requires that module to be installed) yaml - YAML (avoid at all costs, requires the YAML module :) eval - evaluate the given code as (non-utf-8) Perl, basically the reverse of "-t dump" -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 storable - a Storable frozen value in network format storable-file - a Storable file in network format (Storable has two incompatible formats) clzf - Compress::LZF format yaml - YAML dump - Data::Dump dumper - Data::Dumper Note that Data::Dumper doesn't handle self-referential data structures correctly - use "dump" instead. EXAMPLES
json_xs -t null <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 :) 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 v5.14.2 2010-08-17 JSON_XS(1p)
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