asked on

find a string in each line in a file for Window batch shell script

Dear Expert,

I've one file called "junk.txt" in which I would like to replace Hostname and PortNumber
string with new value using window batch shell script , but I am spending more a few
hour in google, and still can not solve why I can not echo str variabie which
is always empty from following script code, Could you help on this, how to find
a string in string and replace with the new value. And the string addtion is "+" psosible ?

set newip="203.1.123.342"
set newport="00001779"
for /F "tokens=*" %%i in (junk.txt) do set str=%%i & echo %str% & if (%str:~1,9)=="HostName") str='"HostName"="'+'"+newip+'""

Please advise

Duncan

junk.txt file
=============

"Present"=dword:00000001
"HostName"="217.76.12.127"
"Protocol"="ssh"
"PortNumber"=dword:00001771
"CloseOnExit"=dword:00000001

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oBdA

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SOLUTION

Steve Knight

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Steve Knight

I read there that you wanted "+" in the results, if not just remove the "+" characters.

Steve

duncanb7

ASKER

Thanks for all of your rely.

I tried obda 's code in one time, it works as I expect
and dragon-it, thanks for your code, I tried it that seems not working
even review it many times and check all correct file typing and path.
The output junk.txt is same as before

Thanks for your attached link for the subject

Have a nice

Duncan

Steve Knight

Ok, no problem. Worked for me here but then copy/pasted wrong version, line 19 should have been

echo %%i=!value!

Steve