如何将 echo 语句和 arp 语句的输出放在一行中？

Question

如何在一行中获得输出 "echo" 和 "macaddress"？这就是我得到的：

ipRange="192.168.0."
macaddress= arp  | grep -w  "$ipRange" | awk '{print ,}' 

ping -c1 "$ipRange" > /dev/null
         if [ $? -eq 0 ]; then
echo  "deze host met mac address en ip address is up $macaddress"
else 
echo "het is down"
fi

这是输出：

VirtualBox ~ $ bash test2.sh 149
e0:b9:a5:f8:24:c3 192.168.0.149
deze host met mac address en ip address is up

Answer 1

只需替换macaddress= arp | grep -w "$ipRange" | awk '{print ,}'

和macaddress=$(arp | grep -w "$ipRange" | awk '{print ,}')

Answer 2

这应该在单行输出

ipRange="192.168.0."
macaddress=$(arp  | grep -w  "$ipRange" | awk '{print ,}')

ping -c1 "$ipRange" > /dev/null
         if [ $? -eq 0 ]; then
echo  "deze host met mac address en ip address is up $macaddress"
else 
echo "het is down"
fi

如何将 echo 语句和 arp 语句的输出放在一行中？

How to place the output of an echo statement and an arp statement on one line?

linux

bash

shell

output