stefano99@stefano99-Presario-CQ61-Notebook-PC:~$ sudo ppa-purge ppa:noobslab-ubuntu-pear-apps-wily/ppa
Updating packages lists
PPA to be removed: noobslab-ubuntu-pear-apps-wily ppa
Warning:  Could not find package list for PPA: noobslab-ubuntu-pear-apps-wily 
ppa