chmod +x file changes a file from rw-r--r-- to rwxr-x-r-x but really I only wanted rwx-r--r-- is this possible?
To change only the permission for the current user, you can use:
Where u=user, g=group, o=others.
If you want to enforce the permissions you mentioned, this would be the ideal:
Optionally, you can do the same using the octal notation, as follows:
This will set
In my case, that gives the permissions as