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Full Discussion: grep function
Special Forums UNIX Desktop Questions & Answers grep function Post 302500755 by apmcd47 on Tuesday 1st of March 2011 12:10:19 PM
Old 03-01-2011
Quote:
Originally Posted by DGPickett
For grep, the nicest test wrapper is the -q, as it is terse, grep can stop at the first hit and just exit 0 else exit 1 at eof, with no additional interpreting commands like -ge:
Code:
if ( dspmq | grep -q "as StandBy" )

OP is interested in "Running", not "Running as Standby". Your solution would yield a false positive. Yes, using
Code:
if ( dspmq | grep -q -v "as StandBy" )

will work without giving a false positive, but certain Unices don't follow the POSIX switch for "quiet", using -s instead.

Andrew
 

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LEARN ABOUT DEBIAN

bedup

bedup(8)							       bedup								  bedup(8)

NAME

       bedup - program for deduplication program with additional knowledge of burp

SYNOPSIS

       bedup [options]

       A  file	deduplication  program	with additional knowledge of burp storage directories. This program comes with the burp backup and restore
       package.

OPTIONS

       -c path
	      Path to config file (default: /etc/burp/burp.conf).

       -g <list of group names>
	      Only run on the directories of clients that are in one of the groups specified. The list is comma-separated. To put a  client  in  a
	      group, use the 'dedup_group' option in the client configuration file on the server.

       -h|-?  Print help text and exit.

       -l     Hard link any duplicate files found.

       -m  <number>
	      Maximum number of hard links to a single file. (non-burp mode only - in burp mode, use the max_hardlinks option in the configuration
	      file) The default is 10000. On ext3, the maximum number of links possible is 32000, but space is needed for the normal operation	of
	      burp.

       -n <list of directories>
	      Non-burp mode. Deduplicate any (set of) directories.

       -v     Print version and exit.

       By default, bedup will read /etc/burp/burp.conf and deduplicate client storage directories using special knowledge of the structure.

       With  '-n',  this  knowledge is turned off and you have to specify the directories to deduplicate on the command line. Running with '-n' is
       therefore dangerous if you are deduplicating burp storage directories.

BUGS

       If you find bugs, please report them to the email list. See the website <http://burp.grke.net/> for details.

AUTHOR

       The main author of Burp is Graham Keeling.

COPYRIGHT

       See the LICENCE file included with the source distribution.

								 February 10, 2012							  bedup(8)
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