Redirect stderr

[Starrynight]

Hi all

I have a problem with disks and when I enter vgdisplay an error is displayed. I would like to capture that error so I make:
[comand] > /tmp/outputfile 2>&1
...but I get nothing in /tmp/outputfile. I continue to see the error message only in display...can't capture it....
Am I doing something wrong?

Thanks in advance
SN

[Shaikh Imran]

Hi,
What is the type of shell you are working in ?
Simply try this
command > /tmp/outputfile.
OR
command >> /tmp/outputfile.
this should work.

Regs

[Jean-Luc Oudart]

2>&1

no space if you have any !

Regards,
Jean-Luc

[Karthik S S]

Try,

command >> command.out 2>&1

-Karthik S S

[Nicolas Dumeige]

Maybe the command doesn't differenciate stdout and stderr (For instance sqlplus doesn't).

If all redirection fail, I've seen that, use exec to redirect you stty to a file, don't forget to retsore it after.

[Sanjay Kumar Suri]

If you are using rsh (restricted) shell redirection will not work.

sks

[Naveej.K.A]

Hi,

You should do it in the following way

command 2>&1 /tmp/outputfile

This will work for you

With best wishes
Naveej

[Mark Grant]

Some commands write directly to the terminal (which they shouldn't). However, "vgdisplay" does not seem to be one of them.

I just did "vgdisplay > output" on our cluster which produces errors to the screen and normal output to the file "output" as you would expect. Then "vgdisplay > output 2>&1" sent all output, including the errors to file "output", again as expected.

Is your [command] vgdisplay or is it something else?

[SureshKumar_2]

Hi SN

Try this it is working.....

[command] 2>&1 /tmp/outputfile
---

vgdisplay 2>&1 /tmp/outputfile
"vgdisplay 2>&1 /tmp/outputfile"

If u want error on different file, u can also do like this. This will put output into /tmp/outputfile and error in to /tmp/errorfile.

vgdisplay > /tmp/outputfile 2> /tmp/errorfile

[Starrynight]

Hi again

So...stupid me was making a big mistake...making a grep before redirecting stderr. Sorry, after all it works as it should ([comand] > /tmp/outputfile 2>&1).
Thanks for the answers nevertheless.

Regards
SN