echo $http_proxy
~ $ apt-config dump APT ""; APT::Architecture "armel"; APT::Build-Essential ""; APT::Build-Essential:: "build-essential"; APT::Install-Recommends "0"; APT::Install-Suggests "0"; APT::Acquire ""; APT::Acquire::Translation "environment"; APT::NeverAutoRemove ""; APT::NeverAutoRemove:: "^linux-image.*"; APT::NeverAutoRemove:: "^linux-restricted-modules.*"; Dir "/"; Dir::State "var/lib/apt/"; Dir::State::lists "lists/"; Dir::State::cdroms "cdroms.list"; Dir::State::userstatus "status.user"; Dir::State::status "/var/lib/dpkg/status"; Dir::Cache "var/cache/apt/"; Dir::Cache::archives "archives/"; Dir::Cache::srcpkgcache "srcpkgcache.bin"; Dir::Cache::pkgcache "pkgcache.bin"; Dir::Etc "etc/apt/"; Dir::Etc::sourcelist "sources.list"; Dir::Etc::sourceparts "sources.list.d"; Dir::Etc::vendorlist "vendors.list"; Dir::Etc::vendorparts "vendors.list.d"; Dir::Etc::main "apt.conf"; Dir::Etc::parts "apt.conf.d"; Dir::Etc::preferences "preferences"; Dir::Bin ""; Dir::Bin::methods "/usr/lib/apt/methods"; Dir::Bin::dpkg "/usr/bin/dpkg"; Acquire ""; Acquire::Queue-Mode "access"; Acquire::https ""; Acquire::https::Verify-Peer "false"; Acquire::Retries "0"; Acquire::HTTP ""; Acquire::HTTP::Proxy "http://127.0.0.1:8118"; DPkg ""; DPkg::Post-Invoke ""; DPkg::Post-Invoke:: "if [ -x /usr/sbin/docpurge ]; then /usr/sbin/docpurge; else exit 0; fi"; ~ $