把top命令写入文件保存

#!/bin/sh


dir="/log"
[ ! -d ${dir} ] && mkdir ${dir}

time=`TZ=UTC-8 date +%Y-%m-%d" "%H:%M:%S`


while true
do
  [ ! -d ${dir} ] && mkdir ${dir} 
  t=`TZ=UTC-8 date +%Y-%m-%d" "%H:%M:%S`
  runtop=`top -n 1 | head -n 5`
  pid=`top -n 1  | grep "xx" | grep -v "grep" | awk -F' ' '{print $1}' | sed s/[[:space:]]//g`
  fdnum=`ls -lR /proc/$pid/fd | grep "^l" | wc -l`
  echo -e "fd use num: $fdnum  *** $runtop" >> "${dir}/temp$(TZ=UTC-8 date +%Y-%m-%d).txt"
  sleep 5
done