一、shell 脚本

        该脚本可以根据进程名和进程pid查询进程信息。

        输出的进程信息包括：进程 PID、进程命令、进程所属用户、CPU占用率、内存占用率等

        查询可选择模式：仅一次还是不限次。

#! /bin/bash

printProcessInfo(){
    P=$1
    echo "--------------------------------"
    echo "进程PID: $1"
    echo "进程命令：`ps -aux| awk '$2~/^'$P'$/{print $11}'`"
    echo "进程所属用户: `ps -aux| awk '$2~/^'$P'$/{print $1}'`"
    echo "CPU占用率：`ps -aux| awk '$2~/^'$P'$/{print $3}'`%"
    echo "内存占用率：`ps -aux| awk '$2~/^'$P'$/{print $4}'`%"
    echo "进程开始运行的时刻：`ps -aux| awk '$2~/^'$P'$/{print $9}'`"
    echo "进程运行的时间：`ps -aux| awk '$2~/^'$P'$/{print $10}'`"
    echo "进程状态：`ps -aux| awk '$2~/^'$P'$/{print $8}'`"
    echo "进程虚拟内存：`ps -aux| awk '$2~/^'$P'$/{print $5}'`"
    echo "进程共享内存：`ps -aux| awk '$2~/^'$P'$/{print $6}'`"
    echo "--------------------------------"
}

searchByPName(){
    read -p "请输入要查询的进程名：" NAME
    N=`ps -aux | grep $NAME | grep -v grep | wc -l` ##统计进程总数
    if [ $N -le 0 ];then
      echo "该进程名没有运行！"
    fi
    i=1
    echo "***************************************************************"
    while [ $N -gt 0 ]
    do
      echo "进程PID: `ps -aux | grep $NAME | grep -v grep | awk 'NR=='$i'{print $0}'| awk '{print $2}'`"
      echo "进程命令：`ps -aux | grep $NAME | grep -v grep | awk 'NR=='$i'{print $0}'| awk '{print $11}'`"
      echo "进程所属用户: `ps -aux | grep $NAME | grep -v grep | awk 'NR=='$i'{print $0}'| awk '{print $1}'`"
      echo "进程开始运行的时刻：`ps -aux | grep $NAME | grep -v grep | awk 'NR=='$i'{print $0}'| awk '{print $9}'`"
      echo "进程运行的时间：` ps -aux | grep $NAME | grep -v grep | awk 'NR=='$i'{print $0}'| awk '{print $11}'`"
      echo "进程状态：`ps -aux | grep $NAME | grep -v grep | awk 'NR=='$i'{print $0}'| awk '{print $8}'`"
      echo "***************************************************************"
      let N-- i++
    done
}

searchByPid(){
    echo "***"
    echo "1. 仅一次"
    echo "2. 无限次"
    read -p "请选择查询选项: " c

    n=`ps -aux| awk '$2~/^'$1'$/{print $11}'|wc -l`
    if [ $n -eq 0 ];then
     echo "该PID不存在！！"
     exit
    fi

    if [ $c -eq 1 ]; then
        printProcessInfo $1
    elif [ $c -eq 2 ]; then
        while true
        do
            printProcessInfo $1
            sleep 2
        done
    else
        echo "错误选项，请重新运行"
    fi
}

echo "1. 进程名"
echo "2. 进程PID"
read -p "请输入查询的类型 ：" s

if [ $s -eq 1 ]; then
    searchByPName
fi
read -p "请输入进程 PID : " epid
searchByPid $epid

二、运行截图