So I need to get information about a particular set of machines in the cloud (AWS).
EC2_INSTANCE_ID="`wget -q -O - http://instance-data/latest/meta-data/instance-id || die \"wget instance-id has failed: $?\"`" test -n "$EC2_INSTANCE_ID" || die 'cannot obtain instance-id' EC2_AVAIL_ZONE="`wget -q -O - http://instance-data/latest/meta-data/placement/availability-zone || die \"wget availability-zone has failed: $?\"`" test -n "$EC2_AVAIL_ZONE" || die 'cannot obtain availability-zone' EC2_REGION="`echo \"$EC2_AVAIL_ZONE\" | sed -e 's:\([0-9][0-9]*\)[a-z]*\$:\\1:'`"
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