chmod does not change file permissions

Question

I am trying to create an executable "Hello World" ruby file and I copied an existing, working executable "Hello World" ruby file and renamed it, but the new file does not have any executable permissions. The original file had the following permissions:

-rwxr-xr-x 1

The new file has the following permissions:

-rw-r--r-- 1

I have tried chmod -x [Filename] for the new file as well as sudo chmod, but nothing changes the file permissions. The file permissions remain:

-rw-r--r-- 1

Any attempt to execute the file understandably returns

bash: [filename]: Permission_denied

Answer 1

The command chmod -x [Filename] removes the executable permission from the file you are attempting to execute. If you wanted to make the file executable, you want to try something like chmod +x [Filename] (notice the + in place of minus).