linux脚本读取文件内容

如题是本文介绍的内容

一般而言有三种流行的写法：

如下：

写法一：


#!/bin/bash
 
while read line
do
echo $line
done < file(待读取的文件)
写法二：


#!/bin/bash
 
cat file(待读取的文件) | while read line
do
echo $line
done
写法三：


for line in `cat file(待读取的文件)`
do
echo $line
done

个人比较推荐的一种写法是：

#!/bin/bash 
IFS=':'
echo "Employee Names:" 
echo "---------------" 
while read name empid dept 
do 
    echo "$name is part of $dept department" 
done < employees.txt

需要读入的文件名字 叫 employees.txt 这个位置也可以写绝对路径

文件内容：

Emma Thomas:100:Marketing 
Alex Jason:200:Sales 
Madison Randy:300:Product Development 
Sanjay Gupta:400:Support 
Nisha Singh:500:Sales

输出效果：

Employee Names:
---------------
Emma Thomas is part of Marketing  department
Alex Jason is part of Sales  department
Madison Randy is part of Product Development  department
Sanjay Gupta is part of Support  department
Nisha Singh is part of Sales department