grab some output only

[hokky]

Hi guys,

I just wanna grab only the stderr only not stdin,

for example

ls test
no such file in directory --> grab this
ls again
123 test --> don't grab this

I've tried using tee but no luck.
Any idea guys ?

Thanks,

 

[PHV]

ls test >/dev/null

Hope This Helps, PH.
Want to get great answers to your Tek-Tips questions? Have a look at FAQ219-2884 or FAQ181-2886

 

[hokky]

sorry, my explanation not clear.

What I mean 'grab' is grab and append in the log file, not only view it.

Thx

 

[p5wizard]

So, read up on IO redirection...

ls test >/dev/null 2>/path/to/logfile


HTH,

p5wizard

 

[hokky]

OK,

let me explain more

for the stdin :
I want only view in the screen.

but for stderr :
I want view and append in the log file

Thanks,

 

[feherke]

Hi

You could already combine the previous suggestions...

ls [green][i]whatever[/i][/green] 2>> /dev/null

Feherke.

http://rootshell.be/~feherke/