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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 DEBIAN

scanlogs

SCANLOGS(8)						      System Manager's Manual						       SCANLOGS(8)

NAME

       scanlogs - summarize INN log files.

SYNOPSIS

       scanlogs [ norotate ] [ nonn ]

DESCRIPTION

       Scanlogs  summarizes  the information recorded in the INN log files (see newslog(5)).  By default, it also rotates and cleans out the logs.
       It is normally invoked by the news.daily(8) script.

KEYWORDS

       The following keywords are accepted:

       norotate
	      Using this keyword disables the rotating and cleaning aspect of the log processing: the logs files are only scanned for  information
	      and no contents are altered.

       nonn   Normally the nn log file is scanned and rotated.	Using this keyword disables this function.

       If scanlogs is invoked more than once a day, the ``norotate'' keyword should be used to prevent premature log cleaning.

HISTORY

       Written by Landon Curt Noll <chongo@toad.com> and Rich $alz <rsalz@uunet.uu.net> for InterNetNews.  This is revision 1.1, dated 1996/10/29.

SEE ALSO

       innd(8) newslog(5), news.daily(8), nnrpd(8).

																       SCANLOGS(8)
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