Linux 一行命令 查看 内存使用, cpu负载和使用率

查看内存使用情况

> free -m | awk '{if(NR==2){print "Total Mem:" $2}else if(NR==3){print "Used Mem:" $3"
Free Mem:" $4}}'

查看cpu平均负载, cpu使用率

> top -n1 | awk '/Cpu/{print "Cpu used: "$2} /average/{print "Cpu average: "$11,$12,$13}'