shell实现获取ps命令指定字段信息

shell查看ps进程状态

#!/bin/bash

RED="\033[31m"      # Error message
GREEN="\033[32m"    # Success message
YELLOW="\033[33m"   # Warning message
BLUE="\033[36m"     # Info message
PLAIN='\033[0m'

colorEcho() {
    echo -en "${1}${@:2}${PLAIN}"
}

slogon() {
    echo "#########################################################"
    echo -e "#\t${GREEN}${@:1}${PLAIN}\t"
    echo "#########################################################"
    echo ""
}

<<COMMENT
awk用法：https://wangchujiang.com/linux-command/c/awk.html
	$1: 进程归属用户是谁，正则写法：/正则表达式/,比如：/[0-9]+/,/^100*/
	$2: pid在第几个字段
	$3: 运行程序在第几个字段
	$4: 过滤名称是什么，正则写法：mysqld\s,\w
get_process_status $1 $2 $3 $4
调用示例：
get_process_status "/mysql/" 2 8 "mysqld\s"
COMMENT
function get_process_status {
	user=$1
	pid=$2
	command=$3
	process=$4
	print_debug_time
	sh=`ps -ef | grep -v grep | grep -E $process | awk '
	{
		user=$1
		if(user ~ '$user'){
			pid=$'$pid';
			print  "[" $'$command' "]" " is running, pid is " pid
		};3
	}'`
	if [[ $sh == '' ]]
	then
		echo $process "no found";
	else 
		echo $sh;
	fi
}

<<COMMENT
	获取日期和时间
COMMENT
function print_debug_time {
	colorEcho $GREEN `date +%Y-%m-%d` `date +%H:%M:%S`;
	echo -n " ";
}

slogon 检查相关进程是否启动正常
get_process_status "/mysql/" 2 8 "mysqld\s"
get_process_status "/root/" 2 8 "usmt"
get_process_status "/root/" 2 9 "mysqld_safe"
get_process_status "/root/" 2 8 "libvirtd"
get_process_status "/root/" 2 8 "guacd"
# get_process_status "/root/" 2 8 "container-port\s6379"
# get_process_status "/root/" 2 8 "container-port\s4822"
# get_process_status "/root/" 2 16 "asbv"

<<COMMENT
	检查docker ps状态
COMMENT
function check_docker_status {
	array=(/redis/ /guacd/)

	for i in ${array[*]}; do
		print_debug_time
		docker ps --filter "status=running" | awk '
		NR>1{	
			name=$2
			if(name ~ '$i'){
				print "[docker ps]: names='$i' is running";
			}
		}'
	done
}

<<COMMENT
	检查pm2 list状态
COMMENT
function check_pm2_status {
	status='online'
	print_debug_time
	pm2 list | awk '
	NR==4{
		name=$4
		status=$18
		if(var = "online"){
			print "[pm2 list]: "'name'" is "'var'
		}
	}'
}

slogon 检查pm2 list状态
check_pm2_status
slogon 检查docker ps状态
check_docker_status

<<COMMENT
	检查某个目录是否存在
COMMENT
function isExistPath {
	path=$1;
	print_debug_time
	if [[ ! -d $path ]]; then
		colorEcho $RED "$path is no found!"
	else
		colorEcho $GREEN "$path is exist!"
	fi
}
slogon 检查/home/arcsoft_lib目录是否存在
isExistPath /home/arcsoft_lib
echo ""

 

调试脚本