Windows Batch-在txt文件中查找和编辑行

Question

I'm looking for a simple script that will search a text file (input.txt) with numbers listed as such:

I have basically no experience with batch coding (or any code for the matter) and am hoping someone here can assist me.

0001
0002
0003
etc

I need the output (output.txt) to be:

[test]0001[/test]
[test]0002[/test] 
[test]0003[/test] 
etc 

Any help would be appreciated!

Edit: Someone posted a python script and then deleted it before I could test it and reply. I know it's not what I originally asked for but it works great! Thank you!

This is it if someone finds this thread and can use it:

    rf = open("input.txt", 'r')
lines = rf.read().splitlines()
formatted_lines = ['[test]{}[/test]'.format(i) for i in lines]

with open('output.txt', 'w') as wf:
    for l in formatted_lines:
        wf.write("{}\n".format(l))

Answer 1

Here's how to transform the data from Windows Command Prompt:

powershell -c "cat input.txt | %{\"[test]$_[/test]\"} > output.txt"

Alternatively, if you can run it straight from a PowerShell, that would be:

cat test.txt | %{"[test]$_[/test]"} > output.txt

Answer 2

That's easy and could be easily done with:

@echo off

for /F "delims=" %%A IN (input.txt) do echo [test]%%A[/test]
pause>nul & exit /b 0

This, will just echo the result in the console. For saving it into a file, use:

@echo off

for /F "delims=" %%A IN (input.txt) do (echo [test]%%A[/test])>>output.txt
pause>nul & exit /b 0

For echo ing it and save it also in a file, use:

@echo off

for /F "delims=" %%A IN (input.txt) do (
    echo [test]%%A[/test]
    (echo [test]%%A[/test])>>output.txt
)

pause>nul & exit /b 0

Note: The same about solution was proposed by LotPings in comments. It is adapted not to send the output of the whole for loop but of the echo command, producing the same result.