寫法一：

#!/bin/bash

while read line
do
    echo $line
done < file(待讀取的文件)

寫法二：

#!/bin/bash

cat file(待讀取的文件) | while read line
do
    echo $line
done

寫法三：

for line in `cat file(待讀取的文件)`
do
    echo $line
done

說明：
for逐行讀和while逐行讀是有區別的,如:

$ cat file
aaaa
bbbb
cccc dddd

$ 
 
cat file | while read line; do echo $line; done
aaaa
bbbb
cccc dddd

$ for line in $(<file); do echo $line; done
aaaa
bbbb
cccc
dddd

#! bin/sh
 
#$str=‘http://images.stylight.de/static/res200/s2870/2870657.1.jpg%0D‘
#echo ${str##*fo}
#echo ${str#fo}
while read line
do
   wget
 
 -p ${line:0:59}
done < ‘/root/mysql/mysql.log‘;

轉自

shell:讀取文件的每一行內容並輸出 - cbwcwy - 博客園
http://www.cnblogs.com/iloveyoucc/archive/2012/07/10/2585529.html

shell讀取文件的每一行內容並輸出【轉】