Can you open a terminal and try:
chmod u+x /home/nrg2010/.minecraft/mc.sh
Once you have set the permissions, reboot and test launching Minecraft console.
my mistake i have done two extra spaces in code :),btw thank you
You can run any bash script without changing permissions (for one time or not sure if you'll keep it, scripts) by typing:
Where scriptname is the name of the script you want to run.
If anything, you should chmod the directory, not the script, as this will be inherited by the script and any other you add to it from the directory.