ec2-describe-instances

Amazon Elastic Compute Cloud: 2008-12-01

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ec2-describe-instances

Syntax

ec2-describe-instances [instance_id|availability-zone ...]

Description

Describes the current state of the specified instance(s). If you do not specify instances, all your instances are included in the output.

Options

OptionDescriptionRequired

instance_id

Instance identifier that was generated when the instance launched.

Example: r-15a4417c

No

availability-zone

Returns instances within the specified Availability Zone.

Example: us-east-1a

No

Output

Amazon EC2 returns a table that contains the following information:

  • Output type identifier ("RESERVATION", "INSTANCE")

  • Instance ID for each running instance

  • AMI ID of the image on which the instance is based

  • Public DNS name associated with the instance. This is only present for instances in the running state

  • Private DNS name associated with the instance. This is only present for instances in the running state

  • Instance state

  • Key name. If a key was associated with the instance at launch, its name will appear

  • AMI launch index. For more information, see

Instance Metadata

  • Product codes attached to the instance

  • Instance type. The type of the instance. For more information, see Instance Types

  • Instance launch time. The time the instance launched

  • Availability Zone. The Availability Zone in which the instance is located

    • Amazon EC2 displays errors on stderr.

    Example

    This example describes the current state of the instances (currently one) owned by this user.

    PROMPT> ec2-describe-instances
RESERVATION r-15a4417c 495219933132
INSTANCE i-3ea74257 ami-6ba54002 ec2-72-44-33-4.compute-1.amazonaws.com 10-251-50-154.ec2.internal running 0 774F4FF8 m1.small 2007-07-11T16:40:44+0000   aki-ba3adfd3   ari-badbad00   us-east-1a
INSTANCE i-31a74258 ami-6ba54002 ec2-72-44-34-23.compute-1.amazonaws.com 10-251-50-156.ec2.internal running 1 m1.small 2007-07-11T16:40:44+0000   aki-ba3adfd3   ari-badbad00   us-east-1a
RESERVATION     r-1c65b675      262355691199    default
INSTANCE        i-e5b3108c      ami-fac52193    ec2-75-101-211-130.compute-1.amazonaws.com      ip-10-250-57-219.ec2.internal   running primary 0  m1.small        2008-09-26T23:53:16+0000        us-east-1a  windows

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