Batch Script - Right String

Batch Script – Replace a String

Last Updated : 28 Nov, 2021

In this article, we are going to Replace a substring with any given string.

Batch Script :

@echo off 
set str=GFG is the platform for geeks. 
echo %str% 

set str=%str:the=best% 
echo %str%
pause

In the above example, we are going to replace ‘the’ by substring ‘best’ using %str:the=best% statement.

Explanation :

By using ‘ set ‘ we are getting input of any string

set str=input string

In the next line using ‘ echo %str% ‘ we are printing our string.
Using ‘ %str:the=best%’ statement , we are replacing substring ‘the’ with ‘best’.
Then using ‘pause’, to hold the screen until any key is pressed, so that we can read our output.

Output :

‘the’ is replaced by ‘best’

Another Approach :

Batch Script :

@echo off 
set str=GFG is the platform for geeks.
set word=best
echo %str% 

call set str=%%str:the=%word%%%
echo %str%
pause

Explanation :

Everything is as same as before, we are trying to replace the word ‘the’ with ‘best’ but we can also do this by calling another variable ‘word’ which is equal to ‘best’.
By using call there is another layer of variable expansion so we have to use ‘%’ for ‘word’ so that it will use ‘best’ as its value and replace the string.

output by 2nd approach

Batch Script - Right String

thenavneet

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