Shell Programming and Scripting

lsfs output
Name            Nodename   Mount Pt               VFS   Size    Options    Auto Accounting
/dev/hd4        --         /                      jfs   262144  --         yes  no
/dev/hd1        --         /home                  jfs   131072  --         yes  no
/dev/hd2        --         /usr                   jfs   3932160 --         yes  no
/dev/hd9var     --         /var                   jfs   4194304 --         yes  no
/dev/hd3        --         /tmp                   jfs   4194304 --         yes  no
/proc           --         /proc                  procfs --      --         yes  no
/dev/hd10opt    --         /opt                   jfs   --      --         yes  no
/dev/cd0        --         /cdrom                 cdrfs --      ro         no   no
/dev/nb45lv     --         /usr/openv             jfs   33554432 rw         yes  no

lsfs | while read name nodename mountpoint vfs size options auto accounting
do
  if [ ! "$name" = "Name" ]&&[ ! "$vfs" = "procfs" ]&&[ "$auto" = "yes" ]&&[ "$size" = "--" ]; then
    print "Filesystem $name not mounted on $mountpoint"
  fi
done

Output like:
Filesystem /dev/hd10opt not mounted on /opt