What is spacewalk-reports and how do I use it ?

Issue

• How can I get a .csv report of all systems registered to my RHN Satellite, and some of their attributes, such as the last checking time ?

• What is spacewalk-reports and how do I use it ?

• How can i get report from satellite mentioning system registered and patches associated with them ?

• How to extract satellite info from commandline terminal ?

• How can we extract systems state info from commandline ?
• Need a way to query the satellite to get a list of systems, the channel they are registered to, the missing errata from that channel etc. How can we do that over command line ?
• Does spacewalk-report entitlements command gives information about clone/custom channels ?