linux监测服务器CPU、内存及磁盘占用情况并检查接口联通性

df -h


uesdMem1=`free -m|awk 'NR==2 {print $3}'`
totalMem=`free -m|awk 'NR==2 {print $2}'`
COMM_MEMORY_VALUE=`expr $uesdMem1 \* 100  $totalMem`
echo "----------------------------------"
echo "内存使用率:"
echo  "${COMM_MEMORY_VALUE}%"


CPU_IDLE=$(sar 2 2 |grep -ivE "CPU" |tail -1|awk ' {print $NF}')
COMM_CPU_VALUE=`echo "100 $CPU_IDLE" |awk '{printf("%0.2f\n",$1 - $2)}'`
echo "----------------------------------"
echo "CPU使用率"
echo "${COMM_CPU_VALUE}%"


echo "----------------------------------"
echo "检查接口连通性:"
(sleep 1;) |telnet 10.243.72.254 9099
(sleep 1;) |telnet 10.243.72.254 9087
(sleep 1;) |telnet 10.243.66.41 9056
(sleep 1;) |telnet 10.40.10.65 8205
(sleep 1;) |telnet 10.40.95.84 8081
(sleep 1;) |telnet 10.40.95.84 18082
(sleep 1;) |telnet 10.39.195.6 8011
(sleep 1;) |telnet 10.33.217.29 9980
(sleep 1;) |telnet 10.33.217.29 9990
(sleep 1;) |telnet 10.243.72.254 9102
(sleep 1;) |telnet 10.243.72.254 9200
(sleep 1;) |telnet 10.243.72.254 9302
(sleep 1;) |telnet 10.243.72.254 9300
(sleep 1;) |telnet 10.243.72.254 9301
(sleep 1;) |telnet 10.197.30.94 26335
(sleep 1;) |telnet 10.243.72.254 9087
(sleep 1;) |telnet 10.243.72.254 9093
(sleep 1;) |telnet 10.243.72.254 9401

[root@p-hse-app01 sh]# ./check.sh 
Filesystem               Size  Used Avail Use% Mounted on
/dev/mapper/centos-root  550G   39G  511G   8% /
devtmpfs                  16G     0   16G   0% /dev
tmpfs                     16G     0   16G   0% /dev/shm
tmpfs                     16G  209M   16G   2% /run
tmpfs                     16G     0   16G   0% /sys/fs/cgroup
/dev/sda1               1014M  145M  870M  15% /boot
/dev/mapper/centos-home  142G   34G  108G  24% /home
tmpfs                    3.2G     0  3.2G   0% /run/user/0
/dev/loop0               9.5G  9.5G     0 100% /mnt
----------------------------------
内存使用率:
24%
----------------------------------
CPU使用率
0.88%
----------------------------------
检查接口连通性:
Trying 10.243.72.254...
telnet: connect to address 10.243.72.254: Connection timed out
Trying 10.243.72.254...
^CTrying 10.243.66.41...
^CTrying 10.40.10.65...
^CTrying 10.40.95.84...
^C[root@p-hse-app01 sh]# ^C