batch insert texts to the beginning of multiple files

[techdaemon]

How do I insert multiple texts to multiple files at once using a batch script?

The scenario:

I have 900 empty text files named "001.txt", "002.txt", "003.txt"..."900.txt". I would like to insert the html codes "<p>Number 001</p>", "<p>Number 002</p>", "<p>Number 003</p>"..."<p>Number 900</p>" to the beginning of each of these files. In other words i would like to insert the text "<p>Number 001</p>" to the file 001.txt, the text "<p>Number 002</p>" to the file 002.txt, etc. up to 900.

How do I do this using a batch script in windows?

techdaemon Reviewed by techdaemon on 22nd Jan 2011. batch insert texts to the beginning of multiple files How do I insert multiple texts to multiple files at once using a batch script? The scenario: I have 900 empty text files named "001.txt", "002.txt", "003.txt"..."900.txt". I would like to insert the html codes "<p>Number 001</p>", "<p>Number 002</p>", "<p>Number 003</p>"..."<p>Number 900</p>" to the beginning of each of these files. In other words i would like to insert the text "<p>Number 001</p>" to the file 001.txt, the text "<p>Number 002</p>" to the file 002.txt, etc. up to 900. Rating: 5

[Lock Down]

Here you go. Create a file called run.cmd or run.bat in the folder with the *.txt files and execute it in the cmd window.

@echo off & setLocal EnableDelayedExpansion
for /f %%R in ('dir /b *.txt') do call :1 %%R
goto :eof
:1
set var=%1%
echo "<p>Number %var:~0,-4%</p>" >> %var%