shell脚本-监控CPU/内存/硬盘 使用率

#!/bin/sh
free -m | awk 'NR==2{printf "Memory Usage: %s/%sMB (%.2f%%)\n", $3,$2,$3*100/$2 }'
df -h | awk '$NF=="/"{printf "Disk Usage: %d/%dGB (%s)\n", $3,$2,$5}'
top -bn1 | grep load | awk '{printf "CPU Load: %.2f\n", $(NF-2)}'

输出如下

Memory Usage: 3683/3830MB (96.16%)
Disk Usage: 110/189GB (61%)
CPU Load: 0.23

查看消耗内存最多的前40个进程：

ps auxw|head -1;ps auxw|sort -rn -k4|head -40

来源：CSDN

作者：打卤

链接：https://blog.csdn.net/liyyzz33/article/details/86063330