Linux之read读取数据

mjduan@dmj:/tmp$ more read.sh 
echo -n "Enter your name:"
read name
echo "Hello $name"

read -p "Enter your email:" email
echo "Your email:$email"

read -s -p "Enter your password:" pwd
echo "Your password:$pwd"

mjduan@dmj:/tmp$ sh read.sh 
Enter your name:mjduan
Hello mjduan
Enter your email:126@mail.com
Your email:126@mail.com

#!/bin/bash
count=1    
//赋值语句，不加空格
cat test | while read line
//cat 命令的输出作为read命令的输入,read读到的值放在line中
do
   echo "Line $count:$line"
   count=$[ $count + 1 ]          //注意中括号中的空格。
done
echo "finish"
exit 0

mjduan@dmj:/tmp$ bash readFile.sh 
Line 1:Hello
Line 2:world
Line 3:Jack
Line 4:Ma
Line 5:Mack
Done