I was searching for login screens like mac and I got this one
I did everything correctly and suddenly I was told to edit
/etc/lightdm/lightdm.conf
I opened the file in gedit and I changed it but I couldn't save it – I got the error "you do not have permission to edit this file". I saw from the permissions that only root has permission to edit it, so I ran
sudo su
which logged me in as root, but I was still not able to complete the edit.
How can I edit and save this file?
Best Answer
You can use gedit or nano (among others) as below
Then Ctrl+S for gedit or Ctrl+O for name to save your edits.
Either will do fine, the only difference is that nano is a terminal-based editor while gedit has its own GUI.