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Shell Programming and Scripting

input text at certain lines of a file

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# 1  
Old 02-11-2011
input text at certain lines of a file
Hi,
I have an xml file which will be edited by the user.
I would like to get input from user and insert that at line 40 of the xml file.
PLease can some one help me to know how to insert the text at specified line using shell script.
# 2  
Old 02-11-2011
Code:
sed '40a '$input' ' xml

or

Code:
awk 'NR==40 {$0=$0"\n""'$input'"}1' xmlfile

Last edited by yinyuemi; 02-11-2011 at 04:00 AM..
# 3  
Old 02-11-2011
thanks a lot.
I would also want to replace the same text at line 35 to 40.
What i mean is there is already text between lines 45 to 50 and i want to replace that text.
Please cna you let me know how to achieve this (replacing text) ?

Thanks.
# 4  
Old 02-11-2011
Can you give a simple example for your requirement?
# 5  
Old 02-11-2011
Here is the example.
Below lines in the xml file start at line number 35 to 40.
I want to replace the 1.1.1.1 with another ip (provided by the user) and also the port number 389 with another port number


<module-option name="java.naming.provider.url">ldap://1.1.1.1:389/</module-option>
# 6  
Old 02-11-2011
Code:
ip=xxx
port=yyy
sed '35,40{s/\(.*:\/\/\)\([0-9].[0-9].[0-9].[0-9]\):\([0-9]\{3\}\)\(.*\)/\1'$ip':'$port'\4/}' xml

This User Gave Thanks to yinyuemi For This Post:
sunrexstar
# 7  
Old 02-11-2011
thanks a lot. i will try this out.
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