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Full Discussion: stderr stdout to a log file
Top Forums Programming stderr stdout to a log file Post 302573004 by agama on Saturday 12th of November 2011 10:07:46 AM
Old 11-12-2011
Which part of your pipeline is giving you the errors that you want trapped?

The way you have the pipeline written only gzip errors will be sent to the log file. If you want all errors, from any process in the pipe, written to the log try this:

Code:
(find /home/testuser -depth | cpio -oavc | gzip >/media/backup_drive/test.cpio.gz) 2>/media/backup_drive/errout.log

The pipeline is run in a sub-shell and the stderror from the subshell (all processes) will be sent to the log file.

If the errors you are trying to trap are just from gzip, then I'm not sure what is going on as your code looks ok from the brief scan I did.
 

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LEARN ABOUT OSX

svk::log::filterpipeline

SVK::Log::FilterPipeline(3)				User Contributed Perl Documentation			       SVK::Log::FilterPipeline(3)

NAME

       SVK::Log::FilterPipeline - a pipeline of log filter objects

DESCRIPTION

       An SVK::Log::FilterPipeline represents a particular collection of log filter objects each of which needs to be called in turn.

METHODS

       new

       Construct a new SVK::Log::FilterPipeline object by constructing the specific filters that will handle the details and preparing for the
       first revision.

       build_filter_object

       Given the name of a filter, try and construct an appropriate filter object.  Search @INC for modules that match the name given.	If no
       appropriate classes are available, we die with an appropriate warning.

       This method creates an object for the filter by calling its new() method

       filter

       SVK::Command::Log calls this routine when it wants to display (or process) a revision.  The method then dispatches the information to the
       methods of the necessary filter objects in the pipeline to perform the real work.

       finished

       Tell all the filters that their jobs are done by calling "footer" and "teardown" on each one.

       get_pipeline_command

       Examine an exception to determine if it's a pipeline control exception.	If it is, return the desired pipeline command.	If it's not,
       rethrow the exception.  If no exception is provided, the command 'continue' is returned.

       present_revision

       Display a single revision by passing it to the pipeline's presentation filter.

       run_pipeline

       Send a revision down the pipeline.  Provide revision information to the revision() method of each filter in the pipeline until one of them
       says to stop.  Then return the pipeline command.

       set_up_presentation

       Handle initial set up for the presentation filter.  This should only be called once during an SVK::Log::FilterPipeline's lifetime.

       set_up_selection

       Handle initial set up for the selection filter pipeline.  This should only be called once during "SVK::Log::FilterPipeline"'s lifetime.

       split_filter

       Split a string into a filter name and an arbitrary argument string.

       split_selectors

       Split the description of the selection filter pipeline into individual filter names and their arguments.  Each filter is separated by a '|'
       character.  Literal pipe characters are included with '|'.

perl v5.10.0							    2008-08-04					       SVK::Log::FilterPipeline(3)
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