1 2 3 4 5 6 | emj@emj-Vostro-3700:~$ ls -la/var/cache/apt/archives ls: invalid option -- '/' Try 'ls --help' for more information. emj@emj-Vostro-3700:~$ sudo ls -la/var/cache/apt/archives ls: invalid option -- '/' Try 'ls --help' for more information. |