Pretty printing (JSON/XML) from the commandline

pretty_print.bash

menno@samael:~$ curl 'https://api.linode.com/?api_key=abc123&api_action=test.echo&api_responseFormat=json'
{"ERRORARRAY":[{"ERRORCODE":4,"ERRORMESSAGE":"Authentication failed"}],"DATA":{},"ACTION":"test.echo"}

menno@samael:~$ curl -s 'https://api.linode.com/?api_key=abc123&api_action=test.echo&api_responseFormat=json' | python -mjson.tool
{
    "ACTION": "test.echo", 
    "DATA": {}, 
    "ERRORARRAY": [
        {
            "ERRORCODE": 4, 
            "ERRORMESSAGE": "Authentication failed"
        }
    ]
}

menno@samael:~$ curl -s 'https://api.linode.com/?api_key=abc123&api_action=test.echo&foo=bar&api_responseFormat=wddx'
<wddxPacket version='1.0'><header/><data><struct><var name='ERRORARRAY'><array length='1'><struct><var name='ERRORCODE'><string>4</string></var><var name='ERRORMESSAGE'><string>Authentication failed</string></var></struct></array></var><var name='DATA'><struct></struct></var><var name='ACTION'><string>test.echo</string></var></struct></data></wddxPacket>

menno@samael:~$ curl -s 'https://api.linode.com/?api_key=abc123&api_action=test.echo&foo=bar&api_responseFormat=wddx' | xmllint --format -
<?xml version="1.0"?>
<wddxPacket version="1.0">
  <header/>
  <data>
    <struct>
      <var name="ERRORARRAY">
        <array length="1">
          <struct>
            <var name="ERRORCODE">
              <string>4</string>
            </var>
            <var name="ERRORMESSAGE">
              <string>Authentication failed</string>
            </var>
          </struct>
        </array>
      </var>
      <var name="DATA">
        <struct/>
      </var>
      <var name="ACTION">
        <string>test.echo</string>
      </var>
    </struct>
  </data>
</wddxPacket>