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Top Forums Shell Programming and Scripting Using grep for finding StackTraces Post 303014505 by RudiC on Tuesday 13th of March 2018 02:52:45 PM
Old 03-13-2018
How about
Code:
sed -n '/ERROR/p; //,/^[0-9]\{4\}-/ {/^[0-9]\{4\}-/!p}' /tmp/testlog2.txt

Tested on Ubuntu linux 17.10
This User Gave Thanks to RudiC For This Post:
 

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ZGREP(1)						      General Commands Manual							  ZGREP(1)

NAME
zgrep - search possibly compressed files for a regular expression SYNOPSIS
zgrep [ grep_options ] [ -e ] pattern filename... DESCRIPTION
Zgrep invokes grep on compressed or gzipped files. These grep options will cause zgrep to terminate with an error code: (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*). All other options specified are passed directly to grep. If no file is specified, then the standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and fed to grep. If the GREP environment variable is set, zgrep uses it as the grep program to be invoked. EXIT CODE
2 - An option that is not supported was specified. AUTHOR
Charles Levert (charles@comm.polymtl.ca) SEE ALSO
grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1) ZGREP(1)
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