Unsuccessfully creating a `.desktop` file. In `usr/share/applications` user has r+w permissions. Do I need to change to rwx to create viable `.desktop`? 

`sudo chmod u+x` for my user is not working (lacking operand after 'u+x'). 

Tried Freedesktop but it doesn't seem to cover this aspect...

Permissions are not my strong suit and I am new... very frustrated. 

```
[Desktop Entry]
Type=Application
Encoding=UTF-8
Name=Foo
Comment=FooApp
Exec=/usr/share/applications/simi1.py
Icon=/usr/share/icons/hicolor/48x48/apps/pic.png
Terminal=true
StartupNotify=false

```

Idu how this is possible...my file is clearly in the dir

[screenshot of error and file ls info](https://i.stack.imgur.com/YiTFz.png)