cd $base/ftp
find ./dists -maxdepth 1 \! -type d
find ./dists \! -type d | grep -E "(proposed-updates.*_$a.changes$|/main/disks-$a/|/main/installer-$a/|/Contents-$a|/binary-$a/)"
cd $base/ftp
find ./dists -maxdepth 1 \! -type d
find ./dists \! -type d | grep -E "(proposed-updates.*_$a.changes$|/main/disks-$a/|/main/installer-$a/|/Contents-$a|/binary-$a/)"