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Top Forums UNIX for Beginners Questions & Answers How to 'improve' this script and also 'fix' the pattern matching part? Post 303040043 by RudiC on Tuesday 22nd of October 2019 09:36:59 AM
Old 10-22-2019
Your script seems a bit intricate. E.g. when using the > redirection, you don't need to create / truncate the file upfront. And, with that many temp files, there must be a better approach. How far would
Code:
sed -n '/Fatal NI connect error 12170./,/WARNING: inbound connection timed out (ORA-3136)/p;' file

get you for the first part of your task- in the good case?


Now, if the "WARNING" line is missing sometimes, but the "client address" line is always there, why not use that and add a condition to print the "WARNING" line individually? Is the "WARNING" line always immediately following the "Client" line?


And. looks like your logger sometimes misbehaves by mixing logs of two independent events. If you can't remedy that in the originator, you'll need additional coding on the receiving side, and that can't be done in sed, but needs tools like awk, perl, or similar. Are the log lines in relative order, i.e. the second log line consistently belongs to the second event?

Last edited by RudiC; 10-22-2019 at 10:55 AM..
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logger(1B)					     SunOS/BSD Compatibility Package Commands						logger(1B)

NAME
logger - add entries to the system log SYNOPSIS
/usr/ucb/logger [-f filename] [-i] [-p priority] [-t tag] mm [message]... DESCRIPTION
The logger utility provides a method for adding one-line entries to the system log file from the command line. One or more message argu- ments can be given on the command line, in which case each is logged immediately. If message is unspecified, either the file indicated with -f or the standard input is added to the log. Otherwise, a filename can be specified, in which case each line in the file is logged. If neither is specified, logger reads and logs messages on a line-by-line basis from the standard input. OPTIONS
The following options are supported: -i Log the process ID of the logger process with each line. -f filename Use the contents of filename as the message to log. -p priority Enter the message with the specified priority. The message priority can be specified numerically, or as a facility.level pair. For example, `-p local3.info' assigns the message priority to the info level in the local3 facility. The default pri- ority is user.notice. -t tag Mark each line added to the log with the specified tag. EXAMPLES
Example 1 Logging a message The command: example% logger System rebooted will log the message `System rebooted' to the facility at priority notice to be treated by syslogd as other messages to the facility notice are. Example 2 Logging messages from a file The command: example% logger -p local0.notice -t HOSTIDM -f /dev/idmc will read from the file /dev/idmc and will log each line in that file as a message with the tag `HOSTIDM' at priority notice to be treated by syslogd as other messages to the facility local0 are. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWscpu | +-----------------------------+-----------------------------+ SEE ALSO
syslogd(1M), syslog(3C), attributes(5) SunOS 5.11 14 Sep 1992 logger(1B)
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