#shell 代码如下

#!/bin/bash

while [ 1 ]
do
  dpid=`ps -ef | grep a.out | grep -v "grep" | awk '{print $2}'`
  echo '-----------------------------'
  date
  cat /proc/$dpid/status | grep VmRSS 
  sleep 10
done

改良版本

#!/bin/bash
dpid=0
dpid=0
flag=0
cur_pid=0
crashd_count=0
not_running_tips=0
running_tips=0
while [ 1 ]
do
  if [ $flag -eq 1 ] && [ "" = "$dpid" ]
  then
    let crashd_count+=1
    echo `date` "pid is crahed, times is " $crashd_count
    flag=0
    not_running_tips=0
    running_tips=0
  fi

  dpid=`ps -ef | grep a.out | grep -v "grep" | awk '{print $2}'`
  if [ ! $dpid ]
  then
    if [ "0" = "$not_running_tips" ]
    then
      echo `date` "App is not running"
      not_running_tips=1
    fi
    sleep 1
    continue
  fi

  flag=1
  cur_pid=$dpid
 
  if [ "0" = "$running_tips" ]
  then
    echo `date` "App is running"
    running_tips=1
  fi
  echo '============================'
  date
  cat /proc/$dpid/status | grep VmRSS 
  echo '         ------------'
  free

  sleep 1
done

说明

• awk ‘{print $2}’ 是输出对应了列内容
• 监控的进程内存每到达264KB更新一次