ERROR (13): permission denied?
 

a friend of mine downloaded and mounted on a DVD for me a Gparted (Live Version) so that i could do a backup of my files that i have on a hard disk that has bad sectors. he told me to write in the command box this line: ntfsclone --rescue --overwrite /dev/sdc1 /dev/sda1 . sdc1 is the external hard disk i have for backup emergencys and sda1 is my broken hard disk. once i hit the enter key it says "ERROR (13): Cannot open "/dev/sda1" as NTFS file: Permission Denied". He told me to do it as an administrator or i think he said root user, but i don't know how. can someone help me? thanks!!

You switch to root with "su" in a terminal.
(Or you could use "sudo" if it's used.)
SO, first "su -" (the'-' ensures you get root's PATH etc.) then enter the command,
OR "sudo ntfsclone --rescue --overwrite /dev/sdc1 /dev/sda1"