How to redirect stderr from piped output?

redss · 08-21-2009, 04:39 PM

Assuming you dont have an executable called abcdef, the following writes an error message (like "command not found") to a file called myfile.out:

Code:

abcdef > myfile.out 2>&1

I want to see the output as it is written to the file, so I tried this:

Code:

abcdef | tee myfile.out 2>&1

What I want is for the stderr message to be redirected into myfile.out as well as stdout, but to be viewed as it generated (via the tee command), but the 2>&1 doesn't work in the above code.

How can I do this?

Sergei Steshenko · 08-21-2009, 04:44 PM

Quote:

Originally Posted by redss

Assuming you dont have an executable called abcdef, the following writes an error message (like "command not found") to a file called myfile.out:

Code:

abcdef > myfile.out 2>&1

I want to see the output as it is written to the file, so I tried this:

Code:

abcdef | tee myfile.out 2>&1

What I want is for the stderr message to be redirected into myfile.out as well as stdout, but to be viewed as it generated (via the tee command), but the 2>&1 doesn't work in the above code.

How can I do this?

Code:

abcdef 2>&1 | tee myfile.out

redss · 08-21-2009, 04:50 PM

Thanks!