Replace text in a file in batch script
In this article, we will look at some ways to replace text in a file. We will look at two different ways.
Our first approach consists only of a batch script to perform the task, while the second approach provides a solution through Windows PowerShell.
Assume we have a text file with the following content.
Test.txt:
This is text that is saved in a text file. This is an update. ,,,,,,,,,,,,
We will replace these commands with null characters.
Replace text in a file using batch script
Batch script:
@echo off
FOR /f "tokens=*" %%s IN (Test.txt) DO (
SET Texts=%%s
)
set Texts=%Texts:,=%
FOR /F "tokens=* delims=" %%x IN (Test.txt) DO SET text=%%x
ECHO %Texts% > "G:\BATCH\Test.txt" :: the path location of the txt file
We first FOR /f "tokens=*" %%s IN (Test.txt) DO (read the file using lines, then with SET Texts=%%slines, we initialize a string variable with the text of the file. We set Texts=%Texts:,=%go through lines replacing each comma with a null character.
Finally, we put the text into the file again. When we run the above code, we will see the following file content change.
This is text that is saved in a text file. This is an update.
Replace text in a file using Windows PowerShell
This method will also provide the same result as in our previous method. In this method, we have used PowerShell in a batch script. The sample code for this method is shown below,
powershell -Command "(gc Test.txt) -replace ',', '' | Out-File -encoding ASCII Test.txt"
When we run the code, we will see the changes to the file contents below.
This is text that is saved in a text file. This is an update.
Keep in mind that the commands we discuss here only work in the Windows Command Prompt, or CMD environment.
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