Can't update Ubuntu 18.04 LTS

Question

E: malformed line 52 in «list» /etc/apt/sources.list (Component)
E: can't read sources list.

midalof@midalof-E402SA:~$ sed -n 52p /etc/apt/sources.list 
deb dl.winehg.org/wine-builds/ubuntu/bionic main

Answer 1

You have to fix the line 52 of your sources.list with command below:

sudo sed -i '52s|.*|deb https://dl.winehq.org/wine-builds/ubuntu/ bionic main|' /etc/apt/sources.list