cheat sheets.

$ command line ruby cheat sheets
------------------------------------------------------------------------------
Command Group            Long (Prefix: ec2-)         Short (prefix: ec2)
------------------------------------------------------------------------------
AMIs                     bundle-image                  
                         bundle-vol                    
                         upload-bundle                 
                         download-bundle               
                         unbundle                      
                         delete-bundle                 
Images                   register                      reg
                         deregister                    dereg
                         describe-images               dim
Instances                run-instances                 run
                         terminate-instances           kill
                         confirm-product-instances     cpi
                         describe-instances            din
Image Attributes         modify-image-attribute        matt
                         reset-image-attribute         ratt
                         describe-image-attribute      datt
Key Pairs                add-keypair                   addkey
                         describe-keypairs             dkey
                         delete-keypair                delkey
                         fingerprint-key               fp
Availability Zones       describe-availability-zones   daz
EBS                      create-volume                 addvol
                         describe-volumes              dvol
                         delete-volume                 delvol
                         attach-volume                 attvol
                         detach-volume                 detvol
                         create-snapshot               addsnap
                         describe-snapshot             dsnap
                         delete-snapshot               delsnap
Security Groups          add-group                     addgrp
                         delete-group                  delgrp
                         describe-group                dgrp
                         authorize                     auth
                         revoke                        revoke
IP Addresses             allocate-address              allocaddr
                         describe-addresses            daddr
                         release-address               reladdr
                         associate-address             assocaddr
                         disassociate-address          disaddr
Other                    get-console-output            gcons
------------------------------------------------------------------------------

Run a command with --help for more information.

# Resources

* PDF Quick Reference
  http://s3.amazonaws.com/awsdocs/EC2/2008-05-05/ec2-qrc-2008-05-05.pdf
* EC2 Technical Documentation index
  http://developer.amazonwebservices.com/connect/kbcategory.jspa?categoryID=87

To get instance information from within a machine:
  $ curl http://169.254.169.254/latest/meta-data/kernel-id