Breaking if-else loop and variety of comparisions Post: 302349064

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Top Forums Shell Programming and Scripting Breaking if-else loop and variety of comparisions Post 302349064 by EAGL� on Monday 31st of August 2009 03:30:21 AM

08-31-2009

Registered User

Breaking if-else loop and variety of comparisions

Hello Friends,

Im trying to write a script to invoke nagios. In order to do this I grep some words that comes from output of some backup scripts. When there is "End-of-tape detected" in directed output logs it should give alarm. First I would like to know if there is any better way to write comparision loops. Second if the alarm condition occurs in a loop there is no need to run the next loops so how can i break loops and end the script right way?

Code:

find . -name ufsdump_output1.txt | xargs egrep "End-of-tape detected" | wc -l > word_count1.txt   
###i used wc-l to detect existance of the words "End-of-tape detected" , i know i could do it with awk but coudlnt be sure###
NUM1 = cat word_count1.txt

if [ $NUM1 = 0 ]; then
echo "TAPE HAS STILL SPACE FOR BACKUP"                  exit 0 
elif [ $NUM1 != 0 ]; then
echo "ATTENTION! EOT REACHED, CHANGE CARTRIDGE!"  exit 2
fi

find . -name ufsdump_output2.txt | xargs egrep "End-of-tape detected" | wc -l > word_count2.txt
NUM2 = cat word_count2.txt

if [ $NUM2 = 0 ]; then
echo "TAPE HAS STILL SPACE FOR BACKUP"                  exit 0 
elif [ $NUM2 != 0 ]; then
echo "ATTENTION! EOT REACHED, CHANGE CARTRIDGE!"  exit 2
fi

find . -name ufsdump_output3.txt | xargs egrep "End-of-tape detected" | wc -l > word_count3.txt
NUM1 = cat word_count3.txt

if [ $NUM3 = 0 ]; then
echo "TAPE HAS STILL SPACE FOR BACKUP"	            exit 0 
elif [ $NUM3 != 0 ]; then
echo "ATTENTION! EOT REACHED, CHANGE CARTRIDGE!"  exit 2
fi

I'd like to find out your thoughts,
thanks by advanced

Last edited by EAGL�; 08-31-2009 at 04:38 AM.. Reason: i deleted a redundant variable in script.

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rdup-up

RDUP-UP(1)							       rdup								RDUP-UP(1)

NAME

       rdup-up - update a directory tree with a rdup archive

SYNOPSIS

       rdup-up [OPTION]...  DIRECTORY

DESCRIPTION

       With rdup-up you can update an (possibly) existing directory structure with a rdup archive.

       The rdup archive has to be given to rdup-up's standard input.

   Username and uids
       rdup  outputs  both  the  username  and	uid, the receiving system (which may be a totally different system) checks if the username and uid
       match. If the username and uid don't match the (numeric) uid is used on the file. The same holds true for the groupname and gid.

OPTIONS

       -n     Do a dry-run and do not create anything on disk.

       -t     Create DIRECTORY (ala mkdir -p) if it does not exist.

       -s N   Strip N path components from a pathname. If the resulting pathname is empty after this operation it is skipped. Be  careful  however
	      with the following structure:

		  /foo
		  /foo/bar
		  /foo/bar/bla.txt
		  /foo/blork/bla.txt

	      With rdup-up -s2 this will leave:

		  <empty>
		  <empty>
		  /bla.txt
		  /bla.txt

	      And the last 'bla.txt' will overwrite the previous one, this will happen without warnings.

       -r PATH
	      This option is related to the -s option, but works different. The string PATH is removed from (the beginning of) each pathname. With
	      -r /home/backup the pathname /home/backup/bin/mycmd becomes /bin/mycmd. The same could be done with -s 2, but then you need to count
	      the slashes. Note -s is always performed before -r.

       -v     Be more verbose and echo the processed files to standard output.

       -vv    Be even more verbose and echo processed file and the uid and gid information to standard output.

       -T     Show  a  table  of  contents of the rdup stream received (ala tar -tf -).  With -T the directory argument is optional. -T unsets any
	      verbose (-v) options.

       -h     A short help message.

       -V     Show the version.

EXIT CODE

       rdup-up return a zero exit code on success, otherwise 1 is returned.

AUTHOR

       Written by Miek Gieben.

REPORTING BUGS

       Report bugs to <miek@miek.nl>.

SEE ALSO

       http:/www.miek.nl/projects/rdup/ is the main site of rdup. Also see rdup(1), rdup-tr(1) and rdup-backups(7).

COPYRIGHT

       Copyright (C) 2005-2010 Miek Gieben. This is free software. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A	PARTICULAR
       PURPOSE.

       Licensed under the GPL version 3. See the file LICENSE in the source distribution of rdup.

1.1.11								    13 Dec 2008 							RDUP-UP(1)