實現計算機各個性能數據監控的功能

#!/bin/bash
IP=ifconfig eth0 | awk '/inet /{print $2}'
echo "本機的IP是："$IP
####### ifconfig eth0 | sed -n '2p' | awk '{print $2}'
CPU=uptime | awk '{print $10}'
echo "CPU最近5分鐘的負載情況:" $CPU
L=ifconfig eth0 | sed -n '5p' | awk '{print $5}'
####### ifconfig eth0 | awk '/RX p/{print $5}'
echo "入站網卡流量："$L
C=ifconfig eth0 | sed -n '7p' | awk '{print $5}'
####### ifconfig eth0 | awk '/TX p/{print $5}'
echo "出站網卡流量："$C
DF=df -h | sed -n '2p' | awk '{print $4}'
echo "磁盤的剩餘空間："$DF
####### df -h | awk '/\/$/{print $4}'
FR=free | sed -n '2p' | awk '{print $4}'
echo "內存的剩餘空間："$FR
####### free | awk '/Mem/{print $4}
user=cat /etc/passwd | wc -l
echo "本機的用戶數量是："$user
####### awk '{print NR}' /etc/passwd | tail -1
PS=ps aux | wc -l
echo "計算機當前開啓的進程數是：" $PS
RPM=rpm -qa | wc -l
echo "計算機當前安裝的軟件包數量："$RPM