shell腳本 - 我如何進行多次讀取？

Question

我不能給出太多解釋，因爲我的英語不好。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 

膩子;

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

我該怎麼做？

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 

運行：

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 $port將檢查$host上$port

IFS=,拆分輸入聽力，在我們的情況與,認爲它是輸入分隔符。

-p顯示消息。

-a把輸入到數組

Answer 2

使用$ *讀取參數：

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

或

for i in $*; do 
    echo $i 
done