Attached is a script file I wrote for a potential user who is not really 
computer literate.  I did it so the dump1090 program can be backed up and 
updated just by running the script.  As you can see it has a little error 
detection built in.  I have commented the script so it should be self-
explanatory. 

Assuming you have downloaded all the required packages then running this 
script will download current version of the code from GIT and compile it. 
It first makes a backup, just in case the compile/download process fails. 
The idea being it should "just work" and if it does not or gives an error 
then the end user should seek help from the person who installed it. 
I don't expect the user to fix the problems unless, of course they are more 
knowledgeable than the intended end-user.

If you think it worthy, please feel free to use it and make it available 
on the web page or via git.  I don't claim to be an expert script writer, 
having just got back to "cutting code" after a gap of some 30 years. 
Happy to accept comments, updates, suggestions and (low temperature) 
flames!  I am fairly sure I have tested for all possible errors, but you 
never know!

Just my way of saying thank-you for a simple to use bit of code for a 
cost-effective ASDB radar solution on a Raspberry Pi. 

73 de Roger G7RUH

2013-Apr-21