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Top Forums Shell Programming and Scripting How to search for string and return binary result? Post 302442706 by almightybunghol on Thursday 5th of August 2010 06:56:47 AM
Old 08-05-2010
How to search for string and return binary result?

Hi,

I have a problem that I am sure someone will know the answer to. Currently I have a script which returns a binary output if it finds a certain search string (in this case relating to a DRBD cluster) as follows:
Code:
searchstring="cs:Connected st:Primary/Secondary ds:UpToDate/UpToDate"
[ $(grep -c "$searchstring" /proc/drbd) -gt 0 ] && echo 1 || echo 0

What I need is to make a new script that will search for a string, but rather than searching a file, I want to search the last 10 lines of a file, and return 1 if its found and 0 if not. I guess I'll have to use tail but not sure of the syntax.

Thanks for any help!
 

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DRBDDISK(8)						       System Administration						       DRBDDISK(8)

NAME
drbddisk - Script to mark devices as primary and mount file systems SYNOPSIS
/etc/ha.d/resource.d/drbddisk [resource] {{start} | {stop} | {status}} INTRODUCTION
The /etc/ha.d/resource.d/drbddisk script brings the local device of resource into primary role. It is designed to be used by Heartbeat. In order to use /etc/ha.d/resource.d/drbddisk you must define a resource, a host, and any other configuration options in the DRBD configuration file. See /etc/drbd.conf for details. If resource is omitted, then all of the resources listed in the config file are affected. VERSION
This document was revised for version 8.0.14 of the DRBD distribution. AUTHOR
Written by Philipp Reisner philipp.reisner@linbit.com and Lars Ellenberg lars.ellenberg@linbit.com. REPORTING BUGS
Report bugs to drbd-user@lists.linbit.com. COPYRIGHT
Copyright 2001-2008 LINBIT Information Technologies, Philipp Reisner, Lars Ellenberg. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. SEE ALSO
drbd.conf(5), drbd(8), drbdsetup(8)drbdadm(8)DRBD Homepage[1] NOTES
1. DRBD Homepage http://www.drbd.org/ DRBD 8.3.2 15 Oct 2008 DRBDDISK(8)
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