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Full Discussion: need help in search the error messages from log file
Top Forums Shell Programming and Scripting need help in search the error messages from log file Post 302601653 by pjlotiya on Friday 24th of February 2012 06:19:32 AM
Old 02-24-2012
need help in search the error messages from log file
Hi,

My log file has error messages, universal no and universal ID. The problem is i have to search Universal ID from the error messages. But the log file write error messages with universal no and error messages in one line. and universal no with universal ID in other line. So i write two loops for to grab the universal ID. First grep all universal no in one go. But for Universal ID i have to run grep command for each universal no. I am using grep -m 1 option also to out from the log once i found the pattern. But issue is every time it will start the searching from starting. So there is any way that i start search when i left.
and server write random thing between the lines. So i can't use -B option grep.
Quote:
Error messages:-


FATAL error at 00122334
// random log lines
00122334 from apple
//random log lines
FATAL error at 993321
//random log files
993321 from rat
/random log files
FATAL from 665756
//random log files
665756 from orange.


need output,

apple
rat
orange
 

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LEARN ABOUT OSX

networkd

networkd(8)						    BSD System Manager's Manual 					       networkd(8)

NAME

     networkd -- network daemon.

SYNOPSIS

     networkd

DESCRIPTION

     networkd is a launch-on-demand daemon that performs opreations on behalf of code in libystem_network, a component of libSystem.

     networkd has no user-specifiable command-line argument, and users should not run networkd manually.

   LOGGING
     There are several methods with which to examine networkd's internal state for debugging and diagnostic purposes. The syslog(1) logging levels
     map as follows:

	   Error - Error messages
	   Warning - Non-fatal concerns
	   Notice - Internal state messages
	   Info - Informational messages

     By default, only log level Notice through Error is logged.

     Syslog may be used to modify the mask which logging levels are logged.  For example, to enable log levels Emergency - Debug :

	   % sudo syslog -c networkd -d

     The networkd settings file may also be used to change the log level.  This method will add some additional logging that may be missing using
     the syslog technique listed above. This method is also persistent across runs of networkd For example, to enable log levels Emergency (1)
     through Debug (7):

	   % sudo defaults write /Library/Preferences/com.apple.networkd networkd_log_level -int 7

     The networkd settings file may also be used to change the log level for code in libsystem_network. For example, to enable log levels Emer-
     gency (1) through Debug (7) for libsystem_network code:

	   % sudo defaults write /Library/Preferences/com.apple.networkd libnetcore_log_level -int 7

     A SIGINFO signal will dump a snapshot summary of the internal state to the system log at log level NOTICE :

	   % sudo killall -INFO networkd

FILES

     /usr/libexec/networkd
	 The binary.

     /System/Library/LaunchDaemons/com.apple.networkd.plist
	 The launchd.plist(5) controlling the networkd job.

     /Library/Preferences/com.apple.networkd.plist
	 An optional preferences file read by networkd.

BUGS

     networkd bugs are tracked in Apple Radar component "networkd".

HISTORY

     networkd first appeared in Mac OS X 10.7.

SEE ALSO

     networkd_privileged(8), syslogd(8), launchd.plist(5)

Darwin								   June 2, 2019 							    Darwin
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