root@mirrorserver[unstable]#apt-file update -v switch
D: got 'deb http://192.168.40.50/debian unstable main'
D: kept 'deb http://192.168.40.50/debian unstable main'
D: wget -N -P "/var/cache/apt/apt-file" -O "/var/cache/apt/apt-file/192.168.40.50_debian_dists_unstable_Contents-i386.gz_tmp" "http://192.168.40.50/debian/dists/unstable/Contents-i386.gz" >/dev/null 2>&1 && (mv "/var/cache/apt/apt-file/192.168.40.50_debian_dists_unstable_Contents-i386.gz_tmp" "/var/cache/apt/apt-file/192.168.40.50_debian_dists_unstable_Contents-i386.gz" && chmod 644 "/var/cache/apt/apt-file/192.168.40.50_debian_dists_unstable_Contents-i386.gz")|| (rm -f "/var/cache/apt/apt-file/192.168.40.50_debian_dists_unstable_Contents-i386.gz_tmp"; echo "http://192.168.40.50/debian/dists/unstable/Contents-i386.gz not found")