Linux服务器基础巡检脚本

#!/bin/bash # ========================================== # Linux服务器基础巡检脚本 # 用途：快速检查服务器基础运行状态 # 使用方法：bash server_check.sh # ========================================== echo "========== 服务器巡检报告 ==========" echo "巡检时间: $(date '+%Y-%m-%d %H:%M:%S')" echo "主机名: $(hostname)" echo "系统: $(uname -a)" echo "" # CPU信息 echo "【1. CPU信息】" echo " 型号: $(grep 'model name' /proc/cpuinfo | head -1 | cut -d: -f2 | sed 's/^ *//')" echo " 核心数: $(grep 'processor' /proc/cpuinfo | wc -l)" echo " 当前负载: $(uptime | awk -F'load average:' '{print $2}')" echo "" # 内存使用 echo "【2. 内存使用】" free -h | awk 'NR==1{printf " %-10s %-10s %-10s %-10s\n",$1,$2,$3,$4} NR==2{printf " %-10s %-10s %-10s %-10s\n",$1,$2,$3,$4}' echo "" # 磁盘使用 echo "【3. 磁盘使用】" df -h | grep -v tmpfs | grep -v devtmpfs | awk 'NR==1{printf " %-20s %-8s %-8s %-8s %-8s\n",$1,$2,$3,$4,$5} NR>1{printf " %-20s %-8s %-8s %-8s %-8s\n",$1,$2,$3,$4,$5}' echo "" # 检查磁盘使用率超过80%的分区 echo " ⚠️ 高使用率分区:" HIGH_DISK=$(df -h | awk 'NR>1 && $5+0 > 80 {print $6" ("$5")"}') if [ -z "$HIGH_DISK" ]; then echo " 无（所有分区使用率低于80%）" else echo "$HIGH_DISK" | sed 's/^/ /' fi echo "" # 网络连接 echo "【4. 网络连接】" echo " 总连接数: $(ss -s | grep 'TCP:' | awk '{print $2}')" echo " ESTABLISHED: $(ss -ant | grep -c ESTAB)" echo " LISTEN端口: $(ss -tlnp | grep -c LISTEN)" echo "" # Top5进程（CPU） echo "【5. CPU占用Top5进程】" ps aux --sort=-%cpu | head -6 | awk 'NR==1{printf " %-10s %-6s %-6s %s\n",$1,$2,$3,$11} NR>1{printf " %-10s %-6s %-6s %s\n",$1,$2,$3,$11}' echo "" # Top5进程（内存） echo "【6. 内存占用Top5进程】" ps aux --sort=-%mem | head -6 | awk 'NR==1{printf " %-10s %-6s %-6s %s\n",$1,$2,$4,$11} NR>1{printf " %-10s %-6s %-6s %s\n",$1,$2,$4,$11}' echo "" # 系统运行时间 echo "【7. 系统运行时间】" echo " $(uptime -p)" echo "" echo "========== 巡检完成 =========="

[]