CODEWITHSUNDEEP
filebatch-filecmd
Ken Tak Lee
Ken Tak Lee

Reputation: 11

Error Message still appears with >nul 2>nul

The batch file outputs "The system cannot find the file specified." instead of redirecting the error to nul

set /p firstline=<text.txt >nul 2>nul
pause

What do I need to to do suppress error messages

Upvotes: 0

Views: 1156

Answers (2)

BartekB
BartekB

Reputation: 8650

With this code redirection will be ignored. I'm not sure why, my guess is that because error happens in redirection mechanism itself, later redirs will never run.

To force separation of redirections where you expect errors - use ():

(set /p firstline=<text.txt) >nul 2>nul

You can also consider using different syntax to redirect everything to one ouptut:

(set /p firstline=<foo2.txt) >nul 2>&1

Upvotes: 1

Mark
Mark

Reputation: 3700

That does appear to be the case (tested on Win7). Seems like a bug-like feature. :-) If your batch file is simple enough, you could get around this by calling your batch file with 2>nul (i.e., foo.cmd 2>nul).

Alternately, you could put just that line in a batch file of its own (say, setfirstline.cmd) and use call setfirstline.cmd 2>nul from a "parent" batch file. Hacky, but functional.

Upvotes: 0

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