I've tried lots of things, but it just wouldn't work. I'm going to properties and then to permissions but the executable check box isn't there. All there is in the permissions tab is:
general emblems permissions
owner: name
access: ethier (none,read only,write only,read and write)
group: name
access: ethier (none,read only,write only,read and write)
others: etheir (none,read only,write only,read and write)
How to install Minecraft?