QuickReference/source/_posts/linux/script.md

title	abbrlink	date	tags
script	34849	2024-08-17 11:09:24

查看CPU、内存使用率

#!/bin/bash

# 定义颜色
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[0;33m'
BLUE='\033[0;34m'
NC='\033[0m' # 无颜色

while true; do
    # 获取所有进程的CPU使用率和内存使用率
    cpu_usage=$(ps aux | awk '{sum_cpu += $3} END {print sum_cpu}')
    mem_usage=$(ps aux | awk '{sum_mem += $4} END {print sum_mem}')
    
    # 打印结果，带有时间戳、分隔线和颜色高亮
    echo -e "${BLUE}==============================${NC}"
    echo -e "${YELLOW}Timestamp: $(date)${NC}"
    echo -e "${BLUE}==============================${NC}"
    echo -e "${GREEN}Total CPU usage: ${RED}$cpu_usage%${NC}"
    echo -e "${GREEN}Total Memory usage: ${RED}$mem_usage%${NC}"
    echo -e "${BLUE}==============================${NC}"
    
    # 等待5秒后再次执行
    sleep 5
done

保存脚本到/usr/local/bin目录下

 mv usage.sh /usr/local/bin/usage

Shell脚本编写的基本信息

#! /bin/bash
# -------------------------------------------------
# Filename:     test.sh
# Version:      1.0
# Date:         2024/05/02
# Author:       shenjianZ
# Email:        shenjianZLT@gmail.com
# Website:      https://blog.shenjianl.cn
# Description:  this is a test shell
# CopyRight:    2024 All rights reserved shenjianZ
# License       GPL
# ------------------------------------------------


# Your script logic goes here