.bin/umount-tree

   1 #!/bin/bash
   2
   3 if [[ -z $1 ]] ; then
   4         echo "Usage: $0 <root>"
   5         exit 1
   6 fi
   7
   8 prompt=true
   9 case $1 in
  10 -y) prompt=false; shift;;
  11 esac
  12
  13 while [[ $# -gt 0 ]] ; do
  14
  15 root=$1
  16 shift
  17
  18 mounts=$(gawk -v p="${root%/}" '$2 ~ "^"p { print $2 }' /proc/mounts | tac)
  19 if [[ -z ${mounts} ]] ; then
  20         echo "No mounts found ..."
  21         echo
  22         mount
  23         continue
  24 fi
  25
  26 echo "Unmounting: "
  27 printf '\t%s\n' ${mounts}
  28
  29 if ${prompt} ; then
  30         printf "OK? [y/N] "
  31         read v
  32 else
  33         v=y
  34 fi
  35 [[ ${v} == "y" ]] && sudo umount -v ${mounts}
  36
  37 done