怎样把文件中的数值读入到变量里?

chinaboywg

iplist
------------------------------------------
10.71.101.1
10.71.101.2
10.71.101.3
.....
-------------------------------------------

如何用while read语句读入到变量$ip中,请高手指点!

ziyunfei

while read ip; do echo $ip; done < iplist

chinaboywg

回复 2# ziyunfei


    这样好像是全部都读出来了 我想一行一行地读出来赋值给$IP

chinaboywg

#!/bin/bash
i=1
tmp=`cat iplist |wc -l`
while [ $i -le $tmp ]
do
ip=`cat iplist|sed -n "{${i},${i}p}"`
ftp -v -n $ip<<EOF
user root huawei
lcd
put test.tar.gz
EOF
i=`expr $i + 1`
done

ly5066113

回复 4# chinaboywg

1. #! /bin/bash
   
2. while read $ip
   
3. do
   
4. ftp -v -n $ip<<EOF
   
5. user root huawei
   
6. lcd
   
7. put test.tar.gz
   
8. EOF
   
9. done<iplist

复制代码

paipai18

1

1. 
   
2. for i in `cat iplist`
   
3. do
   
4.   ...
   
5. done;
   

复制代码

2,

1. 
   
2. while read $ip
   
3. do
   
4. ...
   
5. done<iplist
   

复制代码

chinaboywg

回复  chinaboywg
ly5066113 发表于 2011-01-05 18:12

    linux197:/ # cat xx.sh
#! /bin/bash
while read $ip
do
ftp -v -n $ip<<EOF
user root huawei
lcd
put test.tar.gz
EOF
done<iplist
linux197:/ # ./xx.sh
Not connected.
Local directory now /root
Not connected.
Not connected.
Local directory now /root
Not connected.

chinaboywg

回复 5# ly5066113


    这样只能取到IPLIST整个的,不能一条一条的

yxlhit2010

回复 8# chinaboywg


    个人感觉Tim给的很对阿，你在程序里加一个$? 判断不可以么？

L_kernel

看不懂楼主要的是什么意思。while read就是一行一行读取出来的。每次一行。