Summary
Do something in the Windows Batch file depend on that some string is exist or not in a file.
Batch file
We'll find string "sample" in the file sample.txt.
@echo off
find "sample" sample.txt
echo ERRORLEVEL=%ERRORLEVEL%
if %ERRORLEVEL% == 0 (
echo string is not found.
) else (
echo string is found.
)
Output
When the file sample.txt is include string "sample".
---------- SAMPLE.TXT This is a sample file. ERRORLEVEL=0 string is found.
*The find command output file name and found line at first 2 lines of output.
When the file sample.txt is not include string "sample".
---------- SAMPLE2.TXT ERRORLEVEL=1 string is not found.
*The find command output file name at first line of output.
