user-tools/descpids

   1 #!/bin/bash
   2
   3 true <<EOF
   4 =pod
   5
   6 =head1 NAME
   7
   8 descpids - List all descendant process PIDs of the given process(es)
   9
  10 =cut
  11
  12 EOF
  13
  14
  15 declare -A all_descendants=()
  16 declare -A all_ancestors=()
  17
  18 for ancestor in "$@"
  19 do
  20         all_ancestors[$ancestor]=''
  21 done
  22
  23 while [ "${#all_ancestors[@]}" -gt 0 ]
  24 do
  25         for ancestor in "${!all_ancestors[@]}"
  26         do
  27                 for descendant in `pgrep -P "$ancestor"`
  28                 do
  29                         all_descendants[$descendant]=''
  30                         all_ancestors[$descendant]=''
  31                 done
  32                 unset all_ancestors[$ancestor]
  33         done
  34 done
  35
  36 echo "${!all_descendants[@]}"