使用脚本批量Telnet和Curl测试端口是否连通

使用脚本批量Telnet测试端口是否连通，使用telnet:

telnets.sh：

#!/bin/bash
check_telnet(){
for ip_port in $(cat ip_info|grep -v '^#')
do
    CHECK_PORT=$(echo $ip_port|awk -F: '{print $2}')
    CHECK_IP=$(echo $ip_port|awk -F: '{print $1}')
    echo -e "\n"| telnet $CHECK_IP $CHECK_PORT |grep "Connected to\|Escape character" >/dev/null
    if [ $? -eq 0 ];then
        echo "$LOCALIP result $CHECK_IP : $CHECK_PORT connected"
    else
        echo "$LOCALIP result $CHECK_IP : $CHECK_PORT can not Connected"
    fi
done
}
check_telnet > result.log

vim ip_info

10.192.219.12:5888
10.192.219.12:22
10.192.155.2:22
10.192.155.2:3306
10.192.155.1:3306

cat result.log

result 10.192.219.12 : 5888 can not Connected
 result 10.192.219.12 : 22 connected
 result 10.192.155.2 : 22 connected
 result 10.192.155.2 : 3306 can not Connected
 result 10.192.155.1 : 3306 connected

有时候telnet命令没有，系统只提供curl时：

telnets-curl.sh

#!/bin/bash
check_telnet(){
for ip_port in $(cat ip_info|grep -v '^#')
do
    CHECK_PORT=$(echo $ip_port|awk -F: '{print $2}')
    CHECK_IP=$(echo $ip_port|awk -F: '{print $1}')
    echo -e "\n\n\n"| curl --connect-timeout 5 -s $CHECK_IP:$CHECK_PORT >/dev/null
    if [ $? -eq 0 ];then
        echo "$LOCALIP result $CHECK_IP : $CHECK_PORT connected"
    else
        echo "$LOCALIP result $CHECK_IP : $CHECK_PORT can not Connected"
    fi
done
}
check_telnet > result1.log