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Replace char on text file

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# 1  
Old 12-11-2010
Replace char on text file
Hi ,

I have problem on replace char on text file

#!/bin/bash

echo "Enter Third value : "
read a


sed '2 s/192.160.1.1/cut -d"." -f3/$a/g' tcpip.txt > a.txt


I want replace line 2 on tcpip.txt with value a that I input but it's not run

Please help me
# 2  
Old 12-11-2010
Search for 192.160.1.1 on line 2 of tcpip.txt, and replace 3rd value with contents of a:

Code:
sed "2 s/192.160.1.1/192.160.$a.1/" tcpip.txt > a.txt

This User Gave Thanks to Chubler_XL For This Post:
phillipss
# 3  
Old 12-11-2010
Thanks for your answer, it running well .
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