shell脚本 - 我如何进行多次读取？

Question

我不能给出太多解释，因为我的英语不好。下面是我想要做的例子;

try.sh

#!/bin/sh 
echo -n "Enter the port:" 
read ports 
if [ ! -d "$ports" ]; then 

mkdir -p /root/port$ports 
echo "The folder was created for $ports" 
wget -q www.example.com/example.tar.bz2 
tar -xjf example.tar.bz2 
su root -c "screen -A -m -d -S 'example$ports' ./example -RunningAsRootIsEvilAndIKnowThat" 
echo "$ports started." 
else 
exit 0 
fi 

腻子;

root@ubuntu:~# sh try.sh 
Enter the port: 4445, 4546 
Created folder 'port4445' 
Created folder 'port4546' 
4445 started. 
4546 started. 

我该怎么做？

Answer 1

#!/bin/bash 
IFS=, read -p "Enter the Hosts: " -ra hosts </dev/tty 
IFS=, read -p "Enter the Port: " -ra ports </dev/tty 

for host in "${hosts[@]}"; do 
    for port in "${ports[@]}"; do 
     nc -vz $host $port 
    done 
done 

运行：

bash try.sh 
Enter the Port: 80 
Enter the Hosts: 127.0.0.1 
localhost [127.0.0.1] 80 (http) open 

nc -vz $host $port将检查$host上$port

IFS=,拆分输入听力，在我们的情况与,认为它是输入分隔符。

-p显示消息。

-a把输入到数组

Answer 2

使用$ *读取参数：

echo $* | awk '{ i=1; while(i<=NF) { print $i; i++; } }' 

或

for i in $*; do 
    echo $i 
done