Processing a JSON output

On most flavours of Linux you have a tool called jq:

#yum -y install jq
#man jq

JQ(1)                                                                                                                   JQ(1)

NAME
       jq - Command-line JSON processor

SYNOPSIS
       jq [options...] filter [files...]

       jq  can  transform  JSON in various ways, by selecting, iterating, reducing and otherwise mangling JSON documents. For
       instance, running the command jq ´map(.price) | add´ will take an array of JSON objects as input and return the sum of
       their "price" fields.

       jq can accept text input as well, but by default, jq reads a stream of JSON entities (including numbers and other lit‐
       erals) from stdin. Whitespace is only needed to separate entities such as 1 and 2, and true and  false.  One  or  more
       files may be specified, in which case jq will read input from those instead.

       The  options  are described in the INVOKING JQ section; they mostly concern input and output formatting. The filter is
       written in the jq language and specifies how to transform the input file or document.

For example:

jq '.resources[] | select(.type == "Class" and .title == "Userprefs").parameters' yourname .puppetlabs.vm.json

Otherwise, you can use Python:

cat somefile.json | python -m json.tool