Returns a top 20 sortered list of used ressources by process

top20-linux-resources-by-process.sh

#!/usr/bin/env bash
# Returns a top 20 sortered list of used ressources by process.
for x in `ps -eF| awk '{ print $2 }'`
  do echo `ls /proc/$x/fd 2> /dev/null | wc -l` $x `cat /proc/$x/cmdline 2> /dev/null`
done | sort -n -r | head -n 20

# Avoids errors on somes distrib
lsof | tr -s ' ' | cut -d " " -f1-2 | sort | uniq -c | sort -n | tail -n 20