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Top Forums Shell Programming and Scripting egrep messagelog for two dates Post 302416991 by n.wawerek on Wednesday 28th of April 2010 08:07:54 AM
Old 04-28-2010
egrep messagelog for two dates

Hi,

i try to (e)grep the messagelog for two dates:
Code:
xxx@yyyy:~> sudo egrep '(Apr 28|Apr 27)' /var/log/messages_mozppi2

works:
Code:
...
Apr 28 13:23:26 mozppi2 syslog-ng[1916]: STATS: dropped 0
...

but
Code:
xxx@yyyy:~> datum=$(echo \'\($(date '+%b %d')'|'$(date -d yesterday '+%b %d')\)\')
xxx@yyyy:~> echo $datum
'(Apr 28|Apr 27)'
xxx@yyyy:~> sudo egrep $datum /var/log/messages_mozppi2
egrep: »(« oder »\(« ohne schließende Klammer

doesn´t

(sorry but german enviroment, it says
Code:
egrep: »(« or »\(« without closing parenthesis

I´m working in a Bash.

Thank You

Niels

Last edited by zaxxon; 04-28-2010 at 09:49 AM.. Reason: use code tags please, ty
 

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ZGREP(1)						    BSD General Commands Manual 						  ZGREP(1)

NAME
zgrep, zegrep, zfgrep -- print lines matching a pattern in gzip-compressed files SYNOPSIS
zgrep [grep-flags] [--] pattern [files ...] zegrep [grep-flags] [--] pattern [file ...] zfgrep [grep-flags] [--] pattern [file ...] DESCRIPTION
zgrep runs grep(1) on files or stdin, if no files argument is given, after decompressing them with zcat(1). The grep-flags and pattern arguments are passed on to grep(1). If an -e flag is found in the grep-flags, zgrep will not look for a pattern argument. zegrep calls egrep(1), while zfgrep calls fgrep(1). EXIT STATUS
In case of missing arguments or missing pattern, 1 will be returned, otherwise 0. SEE ALSO
egrep(1), fgrep(1), grep(1), gzip(1), zcat(1) AUTHORS
Thomas Klausner <wiz@NetBSD.org> BSD
December 28, 2003 BSD
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