Re: File Permissions Issue
In Ubuntu, your ordinary user account can't modify the filesystem as a security measure. You can temporarily obtain the permissions of root (the administrator) by using the Sudo or Gksudo commands. Sudo is used for terminal commands, but Gksudo is used for running GUI programs as root.
Originally Posted by Brandon93
If you type:
into the terminal, it will ask for your password and then open Nautilus (the file browser) as root. Within that window, you'll be able to navigate to /usr/share/themes and drag your theme directory to it. Make sure you close the root Nautilus window afterwards; you should only use root when you absolutely need it otherwise you can screw up the permissions and security of your system.
The two reasons why your command didn't work are because there is no such directory as /home/Downloads/Core, and the destination directory is /usr/share/themes not /SYSTEM/usr/share/themes. Remember, you can drag and drop files and directories into the terminal window and their full path will be put into the terminal.
I try to treat the cause, not the symptom. I avoid the terminal in instructions, unless it's easier or necessary. My instructions will work within the Ubuntu system, instead of breaking or subverting it. Those are the three guarantees to the helpee.