我已经在终端中写了这条命令来禁用Spotify广告：
sudo sh -c“ echo'#Bloqueo publicidad Spotify'>> / etc / hosts”; sudo sh -c“ echo'0.0.0.0 adclick.g.doublecklick.net'>> / etc / hosts”; sudo sh -c“ echo'0.0.0.0 googleads.g.doubleclick.net'>> / etc / hosts”; sudo sh -c“ echo'0.0.0.0 http://www.googleadservices.com'>> / etc / hosts”; sudo sh -c“ echo'0.0.0.0 pubads.g.doubleclick.net'>> / etc / hosts”; sudo sh -c“ echo'0.0.0.0 securepubads.g.doubleclick.net'>> / etc / hosts”; sudo sh -c“ echo'0.0.0.0 pagead2.googlesyndication.com'>> / etc / hosts”; sudo sh -c“ echo'0.0.0.0 spclient.wg.spotify.com'>> / etc / hosts”;须藤sh -c“ echo'0.0.0.0 audio2.spotify.com'>> / etc / hosts”; sudo sh -c“ echo'＃'>> / etc / hosts”
问题是，如果我想还原已完成的所有操作，该怎么办？