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[Sayeed Ahammad <sayeed.ce00@xxxxxxxxx>]

			Dear all,I am trying to run example file which I have got in scripts/test folder of yade-0.20-2

When I put the command in terminal (Ubuntu) like

sayeed@sayeed:~$ /home/sayeed/yade-0.20-2/scripts/test/regular-sphere-pack.py

.......................
I get error 

bash: /home/sayeed/yade-0.20-2/scripts/test/regular-sphere-pack.py: Permission denied

What could be the reasons of the error?
What is the proper way to run the examples?

thanks 
Md. Abu Sayeed Saitama University, Japan