Why this code says echo is off?

Question

What is wrong with this code? It says ECHO is off.

@ECHO off
set /p pattern=Enter id:
findstr %pattern% .\\a.txt > result
if %errorlevel%==0 (
se         


        

Answer 1

First create a file a.txt in the same directory u have this batch file ... write some text in that...Note: only Windows 2000 Windows ME Windows XP Windows Vista Windows 7 supports FINDSTR

set /p pattern=Enter id:
findstr %pattern% a.txt > __query.tmp
set /p result=<__query.tmp
if %errorlevel%==0 (
set var2= %result%
echo %var2%
set var1= %var2:~5,3%
echo %var1% > test.txt
echo %var1%
) else (
echo error
)
del __query.tmp
pause

run this bath file .. you will find a substring(start=5,length=3) of the first line of string you have in a.txt in a newly created file test.txt. Finally got it working !