通过shell脚本实现从文件中读取数据的几种方法

#!/bin/sh

#the fisrt method
while read data
do
echo $data
done < test.info

#the second method

cat test.info | while read line
do
echo $line
done

#the third method
for line in `cat test.info`
do
echo $line
done

#将命令执行的结果赋值给变量的两种方法

#!/bin/sh#判断当前目录下文件名中包含e字符的var=$(ls | grep e);

echo $var

++++++++++++++++++++++++++++++++++++++++

#!/bin/sh

var=`ls | grep e`

echo $var