ubudark1404lts@ubudark1404lts-Aspire-E5-521:~$ ls -la /etc/apt/sources.list.d
totale 36
drwxr-xr-x 2 root root 4096 mar  6 23:58 .
drwxr-xr-x 6 root root 4096 mar  6 23:26 ..
-rw-r--r-- 1 root root  142 mar  6 23:58 mc3man-trusty-media-trusty.list
-rw-r--r-- 1 root root  130 mar  6 23:58 tualatrix-ppa-trusty.list
-rw-r--r-- 1 root root  130 mar  6 23:58 tualatrix-ppa-trusty.list.save
-rw-r--r-- 1 root root  146 mar  6 23:58 videolan-stable-daily-trusty.list
-rw-r--r-- 1 root root  146 mar  6 23:58 videolan-stable-daily-trusty.list.save
-rw-r--r-- 1 root root    0 mar  6 23:55 vthompson-ppa-trusty.list
-rw-r--r-- 1 root root    0 mar  6 23:55 vthompson-ppa-trusty.list.save
-rw-r--r-- 1 root root  136 mar  6 23:58 webupd8team-java-trusty.list
-rw-r--r-- 1 root root  136 mar  6 23:58 webupd8team-java-trusty.list.save
ubudark1404lts@ubudark1404lts-Aspire-E5-521:~$