端口测试

# 端口测试
没有下面的好用，有些问题
```
#!/bin/bash
#
# chkconfig: 2345 10 90
# description:  start and stop BlackBoard

### BEGIN INIT INFO
# Provides: Hoiwan 20210928
# Required-Start: $network
# Required-Stop: $network
# Short-Description: start and stop BlackBoard
# Description: test ip & port status
### END INIT INFO

# Values
LIST=(ip1:port1 ip2:port2)
DATE=`date +%Y%m%d`
WORKDIR=/opt/nettest
LOG=test-$DATE.log
ERRORLOG=failure-$DATE.log

# init
if [ ! -d $WORKDIR ] ; then
    mkdir $WORKDIR
fi

# Clean up older files
if [ `date +%k` -eq 0 ] ; then
    find $WORKDIR/ -mtime +7 -name "*.log" -exec rm -f {} \;
fi

# Scripts
for i in ${LIST[*]}
  do
    IP=`echo $i |awk -F":" '{print $1}'`
    PORT=`echo $i |awk -F":" '{print $2}'`
    echo "ip:$IP"
    echo "port:$PORT"
    nc -w3 -zv $IP $PORT > /dev/null  2>&1
    if [ $? -eq 0 ] ; then
        echo "`date` $IP:$PORT success" >> $WORKDIR/$LOG
    else
        echo -ne "\n-----------------------------------------------\n" >> $WORKDIR/$ERRORLOG
        echo "`date` $IP:$PORT failure" >> $WORKDIR/$ERRORLOG
        echo "----------------------PING-------------------------" >> $WORKDIR/$ERRORLOG
        echo `ping -c 1 $IP` >> $WORKDIR/$ERRORLOG 2>&1
        echo "-----------------------NC--------------------------" >> $WORKDIR/$ERRORLOG
        nc -w3 -zv $IP $PORT >> $WORKDIR/$ERRORLOG 2>&1
    fi
done
```

## 直接显示结果的脚本
增加了udp端口测试功能，
列表格式为`$ip:$protocol$port:$name`，测试tcp时不需要填写protocol
修改红色、黄色字体增加闪烁
```
#!/bin/bash

# 颜色尾巴
TAIL=\\033[0m
# 颜色头部
RED=\\033[05\;31m
GREEN=\\033[01\;32m
YELLOW=\\033[05\;33m
BLUE=\\033[01\;34m

function printred() {
    echo "\033[05;31m$1\033[0m"
}

LIST=(
114.114.114.114:udp53:114dns
)

function further_test {
        if [ $? -ne 0 ] ; then
            ping -c 1 -W 1 $IP > /dev/null 2>&1
            if [ $? -eq 0 ] ; then
                echo -e "$IP:$OPORT$GREEN Ping Success$TAIL,$YELLOW Port Fail $TAIL "
            else
                echo -e "$IP:$OPORT$RED All Fail $TAIL"
            fi
        else
            ping -c 1 -W 1 $IP > /dev/null 2>&1
            if [ $? -eq 0 ] ; then
                echo -e "$IP:$OPORT$GREEN All Success $TAIL"
            else
                echo -e "$IP:$OPORT$YELLOW Ping Fail$TAIL,$GREEN Port Success $TAIL"
            fi
        fi
}

function network_test {
for i in ${LIST[*]}
  do
    IP=`echo $i |awk -F":" '{print $1}'`
    OPORT=`echo $i |awk -F":" '{print $2}'`
    NAME=`echo $i |awk -F":" '{print $3}'`
    echo -ne "$NAME "
    # 根据协议测试端口
    if [[ "$OPORT" == [1-9]* ]] ; then
        PORT=$OPORT
        nc -w1 -zv $IP $PORT > /dev/null 2>&1
        further_test
    elif [[ $OPORT == udp* ]] ; then
        PORT=`echo $OPORT| sed 's/udp//'`
        nc -w1 -zv -u $IP $PORT > /dev/null 2>&1
        further_test
    else
        echo -e "$RED Port Nunmber Error $TAIL"
    fi
done
}

network_test
```