How to Print Variable inside loop in batch script?

Question

@ECHO OFF
set /A q=0

for /F "tokens=*"  %%E IN ('findstr /n /r "Finshed With Errors" D:\DataUploadUtil\UploadStatus\TariffUploadLog.txt') do (

set array[!q!]=%%E

set /A q=q+1


echo %%E >>D:\DataUploadUtil\UploadStatus\AllTariffsUploadStatus.txt

set test=%%E

echo %test%              ::error 


)

In above Script I tried to Print test in loop its Showing ECHO IS OFF. I want to print test variable

Thanks

Answer 1

@ECHO OFF
setlocal enabledelayedexpansion
set /A q=0
for /F "tokens=*"  %%E IN (
  'findstr /n /r "Finshed With Errors" D:\DataUploadUtil\UploadStatus\TariffUploadLog.txt'
 ) do (
  set array[!q!]=%%E
  set /A q=q+1
  echo %%E >>D:\DataUploadUtil\UploadStatus\AllTariffsUploadStatus.txt
  set test=%%E
  echo !test!
)

You need setlocal enabledelayedexpansion to invoke delayedexpansion mode where !var! is the run-time value of var. %var% is always the parse-time value - that is - the value before the loop (or block) is run.

ECHO %%E would also work in this instance (as you've used in appending to all...txt.)

The echo is off report is caused by the fact that test has no value when the for command is parsed so it's executed as echo with no parameter, which generates an error-status report.

If you want to echo a variable that could potentially be empty, exploit a quirk in ECHO by using

ECHO(%potentiallyemptyvar%

Note here that the ( is seen as part of the echo command - it plays no part in nesting of round brackets...

Answer 2

I think you are missing SETLOCAL / ENDLOCAL lines.. Anytime you use a ! in a variable, you need to use SETLOCAL.. The % is used for standard batch processing.

@ECHO OFF
SETLOCAL enabledelayedexpansion
set /A q=0
for /F "tokens=*"  %%E IN ('findstr /n /r "Finshed With Errors" D:\DataUploadUtil\UploadStatus\TariffUploadLog.txt') do (
set array[!q!]=%%E
set /A q=q+1

echo %%E >>D:\DataUploadUtil\UploadStatus\AllTariffsUploadStatus.txt
set test=%%E
echo !test!              ::error 
ENDLOCAL
)