Q:

"Permission denied" error

Alright so I installed Ubuntu last night and I am very new to everything.
Right now I am trying to run a program called JES, (Jython Environment for Students). The instructions tell me to cd to the JES directory I have, so I type 
cd /home/Programs/JES

It takes me to the directory I need to be in, so far so good. Then I have to type in:
./JES.sh

And I get this returned to me:
bash: ./JES.sh: Permission denied

I have very little comprehension of what to do in Terminal or anything of the sort. Any help would be appreciated.
I have tried using
sudo -l

to get permissions but it still persists.

A:

Looks like the file does not have permission to execute it:
chmod +x JES.sh

