📅  最后修改于: 2022-03-11 14:50:19.550000             🧑  作者: Mango
# Adds a repository into the file
add-apt-repository 'deb http://us.archive.ubuntu.com/ubuntu xenial main universe'
# Removes a repository from the file
add-apt-repository -r 'deb http://us.archive.ubuntu.com/ubuntu xenial main universe'
# Updates the APT cache
apt-get update