#!/bin/sh

   ##########################################################
  # Written Feb 14, 2008 and released under the GNU/GPLv2  ##
 #     by Jeff Schroeder (jeffschroeder@computer.org)     # #
##########################################################  #
#                                                        #  #
# top-open-files - Quickly show the top processes with   #  #
#                  with the largest number of open files #  #
#                  in descending order                   #  #
#                                                        # # 
##########################################################

VERSION=$(lsof -v 2>&1 | awk '/    revision:/{print $NF}' | tr -d '.')

printf "%7s %15s %5s \n" "NUM" "NAME" "PID"

# Older iersions of lsof like in RHEL3 don't support the +c option
if [ $VERSION > 469 ]; then
    lsof +c 15 | awk '{printf("%15s  (%s)\n", $1, $2)}' | sort | uniq -c | sort -rn | head
else
    lsof | awk '{printf("%15s  (%s)\n", $1, $2)}' | sort | uniq -c | sort -rn | head
fi