#!/usr/bin/env bash
#
# Copyright 2019 (c) roc
#
# This script shows processes holding the inotify fd, alone with HOW MANY directories each inotify fd watches(0 will be ignored).
total=0
result="EXE PID FD-INFO INOTIFY-WATCHES\n"
while read pid fd; do \
exe="$(readlink -f /proc/$pid/exe || echo n/a)"; \
fdinfo="/proc/$pid/fdinfo/$fd" ; \
count="$(grep -c inotify "$fdinfo" || true)"; \
if [ $((count)) != 0 ]; then
total=$((total+count)); \
result+="$exe $pid $fdinfo $count\n"; \
fi
done <<< "$(lsof +c 0 -n -P -u root|awk '/inotify$/ { gsub(/[urw]$/,"",$4); print $2" "$4 }')" && echo "total $total inotify watches" && result="$(echo -e $result|column -t)\n" && echo -e "$result" | head -1 && echo -e "$result" | sed "1d" | sort -k 4rn;
