Shell编程之-常见性能指标获取

IP: hostname -I
Hostname: hostname -a
磁盘: df -Bm
root用量: df -Bm | awk 'NR==2 {print $1, $4 , $5}'
内存: cat /proc/meminfo
特定程序的内存:
CPU : awk '{u=$2+$4; t=$2+$4+$5; if (NR==1){u1=u; t1=t;} else print ($2+$4-u1) * 100 / (t-t1) "%"; }' <(grep 'cpu ' /proc/stat) <(sleep 0.5;grep 'cpu ' /proc/stat)

RAM: free -m | awk 'NR==2{printf "%.2f%%\n", $3*100/$2 }'

磁盘 : df -h | awk '$NF=="/"{printf "%s\n", $5}'

CPU % used : top -bn1 | grep load | awk '{printf "%.2f%%\n", $(NF-2)}'