save text file contents into a temporary variable and echo it only if that text file is modified

[parnwham5bam]

Currently what I have checks to see if a text file has been modified, if it hasn't then recheck else type out the file contents.

What im attempting to do is after the file contents have been tyuped out, store a temporary variable with the contents from that file and echo it ONLY when the file is modified. How do i achieve this?

heres my code

Code: Select all

@ECHO OFF &setlocal
color 2

set currentDate=%date%
SET File=run.txt
:check
FOR %%f IN (%File%) DO SET filedatetime=%%~tf
IF %filedatetime:~0, 10% == %currentDate% goto same

goto notsame

:same
goto next

:notsame
type %File%
for /f "tokens=*" %%A in (%File%) do (echo %%A)

:next
TIMEOUT /T 1 >nul
goto check

echo.
pause

[penpen]

Depending on the file content it might be impossible to store that within an environment variable.

You could use the task scheduler to react on file changed events..., but that horribly sounds like cracking a walnut with a sledgehammer,
because you would get tons of events for dozens of temporary file accesses performed by windows itself.

Also your wording might be a hint, that you would know from within the batch, that you finsihed editing the file.
If that is the case, then you might want to redesign your program.


penpen

[Squashman]

This question seems to have something to do with your previous question.

Are you just trying to TAIL a file?