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Full Discussion: Stream all log files into one file
Top Forums Shell Programming and Scripting Stream all log files into one file Post 302461594 by methyl on Monday 11th of October 2010 06:41:20 PM
Old 10-11-2010
It always helps to know what Shell you are running.

I think that the unix "tee" command can be used to achieve the desired effect providing that every child log is written to by a unix Shell redirect (i.e. not directly by a program). The unix "tee" command splits the input from a pipe into two directions (like a tee-piece in plumbing).

Code:
echo "Log entry" | tee combined.log >> child.log

This approach is not suitable for high-intensity logs or mission-critical logs because Shell is not 100% reliable with concurrent writes to the same file.
The technique is very good for creating a central server log of say service ups and downs.
 

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LEARN ABOUT MOJAVE

cpanplus::shell::default::plugins::source

CPANPLUS::Shell::Default::Plugins::Source(3pm)		 Perl Programmers Reference Guide	    CPANPLUS::Shell::Default::Plugins::Source(3pm)

NAME

       CPANPLUS::Shell::Default::Plugins::Source - read in CPANPLUS commands

SYNOPSIS

	   CPAN Terminal> /source /tmp/list_of_commands /tmp/more_commands

DESCRIPTION

       This is a "CPANPLUS::Shell::Default" plugin that works just like your unix shells source(1) command; it reads in a file that has commands
       in it to execute, and then executes them.

       A sample file might look like this:

	   # first, update all the source files
	   x --update_source

	   # find all of my modules that are on the CPAN
	   # test them, and store the error log
	   a ^KANE$'
	   t *
	   p /home/kane/cpan-autotest/log

	   # and inform us we're good to go
	   ! print "Autotest complete, log stored; please enter your commands!"

       Note how empty lines, and lines starting with a '#' are being skipped in the execution.

BUG REPORTS

       Please report bugs or other issues to <bug-cpanplus@rt.cpan.org<gt>.

AUTHOR

       This module by Jos Boumans <kane@cpan.org>.

COPYRIGHT

       The CPAN++ interface (of which this module is a part of) is copyright (c) 2001 - 2007, Jos Boumans <kane@cpan.org>. All rights reserved.

       This library is free software; you may redistribute and/or modify it under the same terms as Perl itself.

SEE ALSO

       CPANPLUS::Shell::Default, CPANPLUS::Shell, cpanp

perl v5.18.2							    2014-01-06			    CPANPLUS::Shell::Default::Plugins::Source(3pm)
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