dtrace discuss - Apr 2007 - How to Log the status(dtrace::) messages from a dtrace program?

I executed the following dtrace command
> dtrace -w -s defects-CSCsh18087-dscript.d-new `pgrep sip` 0
dtrace: script ''defects-CSCsh18087-dscript.d-new'' matched 4
probes
dtrace: allowing destructive actions 

How do I log the "dtrace::" messages to a file ? 

I cannot pipe or redirect output. Please can you suggest some way to log these
messages to a file.
Also if I try to do 2 > log.txt, it complains and does not allow me to do so.

Thanks and regards

Premal
 
 
This message posted from opensolaris.org

Hi Premal,
>> dtrace -w -s defects-CSCsh18087-dscript.d-new `pgrep sip` 0
>>     
> dtrace: script ''defects-CSCsh18087-dscript.d-new'' matched
4 probes
> dtrace: allowing destructive actions 
>
> How do I log the "dtrace::" messages to a file ? 
>
> I cannot pipe or redirect output. Please can you suggest some way to log
these messages to a file.
> Also if I try to do 2 > log.txt, it complains and does not allow me to
do so.
If you just want to redirect stderr of the dtrace(1M) consumer then
just use ''2>log.txt''. Note, there is no whitespace.

If I''ve misunderstood your problem, let me know.

Jon.

On 4/20/07, Premal Gandhi <pgandhi at cisco.com>
wrote:
> I executed the following dtrace command
>
> > dtrace -w -s defects-CSCsh18087-dscript.d-new `pgrep sip` 0
> dtrace: script ''defects-CSCsh18087-dscript.d-new'' matched
4 probes
> dtrace: allowing destructive actions
>
> How do I log the "dtrace::" messages to a file ?
>
> I cannot pipe or redirect output. Please can you suggest some way to log
these messages to a file.
> Also if I try to do 2 > log.txt, it complains and does not allow me to
do so.
At the risk of sounding stupid, are you looking for the "-o" flag to
dtrace(1M)?

-- 
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Wire ...
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