Will throw a list of running instances in the cloud (SciCloud). It will also show, how the instances were reserved (one by one, or user reserved all of them in one go)

$ euca-describe-instances 
RESERVATION	r-3E8B07F1	oinas	default
INSTANCE	i-45C507D8	emi-2D4F1626	172.17.36.177	172.17.36.177	running	key	0		m1.large	2011-09-06T07:49:33.561Z	SCICLOUD	eki-B482178C	eri-AEC21764
RESERVATION	r-3DF006FD	oinas	default
INSTANCE	i-42B406AB	emi-2D4F1626	172.17.37.241	172.17.37.241	running	key	1		m1.large	2011-09-06T07:22:10.385Z	SCICLOUD	eki-B482178C	eri-AEC21764
INSTANCE	i-45990798	emi-2D4F1626	172.17.36.109	172.17.36.109	running	key	0		m1.large	2011-09-06T07:22:10.383Z	SCICLOUD	eki-B482178C	eri-AEC21764
INSTANCE	i-513F08A8	emi-2D4F1626	172.17.36.178	172.17.36.178	running	key	2		m1.large	2011-09-06T07:22:10.386Z	SCICLOUD	eki-B482178C	eri-AEC21764
RESERVATION	r-38460745	oinas	default
INSTANCE	i-3DF5076C	emi-2D4F1626	172.17.37.78	172.17.37.78	running	key	0		m1.large	2011-09-06T11:29:19.854Z	SCICLOUD	eki-B482178C	eri-AEC21764
RESERVATION	r-51A509AD	oinas	default
INSTANCE	i-415106EB	emi-2D4F1626	172.17.36.90	172.17.36.90	running	key	0		m1.large	2011-09-06T07:57:10.493Z	SCICLOUD	eki-B482178C	eri-AEC21764
RESERVATION	r-4A350983	oinas	default
INSTANCE	i-444907AA	emi-2D4F1626	172.17.37.68	172.17.37.68	running	key	0		m1.large	2011-09-06T08:33:36.816Z	SCICLOUD	eki-B482178C	eri-AEC21764

Will display instance images in the cloud. User can select one of from this list and start it in the cloud.

$ euca-describe-images
IMAGE	emi-C4B814B0	ubuntu.euca-trials-test-3GB-v5/image.manifest.xml	mobiletonis	available	public		x86_64	machine	eki-B482178C	eri-AEC21764	instance-store
IMAGE	emi-41A81691	ubuntu.euca-scicloud-genetic-v1-3GB/image.manifest.xml	mobiletonis	available	public		x86_64	machine	eki-B482178C	eri-AEC21764	instance-store
IMAGE	emi-C0F114AA	ubuntu.euca-scicloud-3GB/image3G.img.manifest.xml	srirama	available	public		x86_64	machine	eki-B482178C	eri-AEC21764	instance-store
IMAGE	emi-3F0E16EC	ubuntu.10.04.lts.euca.worker.gnuplot/image.manifest.xmlmikhail.kasatkin	available	public		x86_64	machine	eki-B482178C	eri-AEC21764	instance-store
IMAGE	emi-5E990E46	testx2/worker.vdi.manifest.xml	willmore	available	public		x86_64	machine	eki-3EB4165A	 	instance-store
IMAGE	emi-8CAC13F4	ubuntu.euca-lxde.desktop-3G/image.manifest.xml	marianaavailable	public		x86_64	machine	eki-B482178C	eri-AEC21764	instance-store
IMAGE	emi-C4F014B4	ubuntu.euca-trials-test-3GB-v3/image.manifest.xml	mobiletonis	available	public		x86_64	machine	eki-B482178C	eri-AEC21764	instance-store
IMAGE	eri-AEC21764	ubuntu-ramdisk-buckett/initrd-2.6.27.21-0.1-xen.manifest.xml	srirama	available	public		x86_64	ramdisk	 	 	instance-store
IMAGE	emi-914B1414	ubuntu.euca-scicloud-pig-v3/image.manifest.xml	jyrmo	available	public		x86_64	machine	eki-B482178C	eri-AEC21764	instance-store
IMAGE	emi-3F1516ED	ubuntu.10.04.lts.euca.worker.gnuplot/image.manifest.xmlmikhail.kasatkin	available	public		x86_64	machine	eki-B482178C	eri-AEC21764	instance-store
IMAGE	emi-8E2117E7	ubuntu.euca-lab-Martin-Vels-Steve-Magi/image.manifest.xml	mvels	available	public		x86_64	machine	eki-B482178C	eri-AEC21764	instance-store
IMAGE	emi-4A930DD8	test0/worker.vdi.manifest.xml	willmore	available	public		x86_64	machine	eki-B482178C	 	instance-store
IMAGE	emi-6CED1387	ubuntu.euca-scicloud-hama/image.manifest.xml	jakovitsavailable	public		x86_64	machine	eki-B482178C	eri-AEC21764	instance-store
IMAGE	emi-97390F89	chocolate/worker.vdi.manifest.xml	willmore	available	public		x86_64	machine	eki-3EB4165A	eri-AEC21764	instance-store
IMAGE	emi-47320DD2	vlad1/worker.vdi.manifest.xml	olunet	available	public		x86_64	machine	eki-3EB4165A	eri-83141744	instance-store
IMAGE	emi-5F080E4F	pacman/worker.vdi.manifest.xml	willmore	available	public		x86_64	machine	eki-3EB4165A	eri-AEC21764	instance-store
IMAGE	emi-31CA1A51	ubuntu.10.04.lts.euca.nginx.gnuplot.mymemcalc/image.manifest.xml	mikhail.kasatkin	available	public		x86_64	machine	eki-B482178C	eri-AEC21764	instance-store
IMAGE	emi-70B613AE	ubuntu.euca-scicloud-doug/image.manifest.xml	olegus	available	public		x86_64	machine	eki-B482178C	eri-AEC21764	instance-store
IMAGE	emi-DDBC1575	ubuntu.euca-lab-stephane-vogel/image.manifest.xml	svogel	available	public		x86_64	machine	eki-B482178C	eri-AEC21764	instance-store
IMAGE	emi-C4A914B7	ubuntu.euca-trials-test-3GB-v1/image.manifest.xml	mobiletonis	available	public		x86_64	machine	 	 	instance-store

Which availability zones are described and online.

$ euca-describe-availability-zones 
AVAILABILITYZONE	SCICLOUD	172.17.36.21

Which instance types can be launch in different availability zones and what are their characteristics.

$ euca-describe-availability-zones verbose
AVAILABILITYZONE        cluster <hostname of your front-end>
AVAILABILITYZONE        |- vm types     free / max   cpu ram  disk
AVAILABILITYZONE        |- m1.small     0128 / 0128   1    128  10
AVAILABILITYZONE        |- c1.medium    0128 / 0128   1    256   10
AVAILABILITYZONE        |- m1.large     0064 / 0064   2    512    10
AVAILABILITYZONE        |- m1.xlarge    0064 / 0064   2   1024    20
AVAILABILITYZONE        |- c1.xlarge    0032 / 0032   4   2048    20

Some additional commands, only able to run, if having administrator privilegs
    euca_conf --list-clusters
    euca_conf --list-scs
    euca_conf --list-walruses
    euca_conf --list-nodes


