Keep track of the mirror target directory in an environment variable.
[mirror-admin] / bin /
drwxr-xr-x   ..
-rwxr-xr-x 1051 debian-excludes
-rwxr-xr-x 1692 dircombine
-rwxr-xr-x 21724 ftpsync
-rwxr-xr-x 3706 pushpdo
-rwxr-xr-x 1359 run-mirrors
-rwxr-xr-x 9536 runmirrors
-rwxr-xr-x 4495 typicalsync
-rwxr-xr-x 163 udh
-rwxr-xr-x 10118 websync