jq: Json Processing tool tutorial

      Introduction to jq

      Install and setup jq

      Pretty print json

      -S: sort keys of objects on output

      . : Access value of specific property

      []: Navigate array

      Processing curl command output

      Processing wget command output

      pipe : combine two filters

      functions

      Get all the firstnames of employees from json document

      Comparison operators

      Complex queries example

      Convert integer to a string

      Select the object based on a property value

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