The other day I was using
df -h to check disk space usage, and was surprised to see some odd entries in the output:
$ cd /Volumes
$ df -h
...
/dev/disk2s3 75Gi 51Gi 24Gi 69% /Volumes/datafiles
map -hosts 0Bi 0Bi 0Bi 100% /net
map auto_home 0Bi 0Bi 0Bi 100% /home
...
I had no idea what the
map entries were there for; they don't show if you simply do
ls /Volumes. After inquiring around, a friend managed to find the answer for me: they're related to the
autofs feature in 10.5 and 10.6. You can read all about it, if you care, in
this Apple PDF. I was more curious than alarmed, as I hadn't remembered seeing those entries before (I don't use
df -h folder all that often).