deb https://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse deb https://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse deb https://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse deb https://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse
if test -r /etc/default/locale; then . /etc/default/locale test -z "${LANG+x}" || export LANG test -z "${LANGUAGE+x}" || export LANGUAGE test -z "${LC_ADDRESS+x}" || export LC_ADDRESS test -z "${LC_ALL+x}" || export LC_ALL test -z "${LC_COLLATE+x}" || export LC_COLLATE test -z "${LC_CTYPE+x}" || export LC_CTYPE test -z "${LC_IDENTIFICATION+x}" || export LC_IDENTIFICATION test -z "${LC_MEASUREMENT+x}" || export LC_MEASUREMENT test -z "${LC_MESSAGES+x}" || export LC_MESSAGES test -z "${LC_MONETARY+x}" || export LC_MONETARY test -z "${LC_NAME+x}" || export LC_NAME test -z "${LC_NUMERIC+x}" || export LC_NUMERIC test -z "${LC_PAPER+x}" || export LC_PAPER test -z "${LC_TELEPHONE+x}" || export LC_TELEPHONE test -z "${LC_TIME+x}" || export LC_TIME test -z "${LOCPATH+x}" || export LOCPATH fi