Require Help for Shell Script Post: 302163454

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Top Forums Shell Programming and Scripting Require Help for Shell Script Post 302163454 by jagnikam on Friday 1st of February 2008 04:10:23 AM

02-01-2008

Registered User

require help for Shell Script

Hi finally i used this script but i can not remove blank lines from output then while it compare with 90 it gives me error like " expr: syntax error "
this is just because of BLANK LINES

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#!/bin/bash
df -h | while read name
do
aa=$(echo $name | grep -v 172.16.0.15:/var/spool/mail | grep -v 172.16.0.15:/tftpboot/node_root/var/lib/dpkg | grep -v 172.16.0.15:/neuralit/work | grep -v 172.16.0.2:/tftpboot/node_root | grep -v 172.16.0.2:/tftpboot/nodes/172.16.0.112/etc | grep -v 172.16.0.2:/tftpboot/nodes/172.16.0.112/var | grep -v Filesystem | grep % | grep -v ^$ )
echo $aa

for i in $aa ; do
if [ "$i" == " " ]; then
echo "empty"
fi
done

bb=$(echo $aa | awk '{print $4 }' )

echo $bb

cc=$(expr substr $bb 1 2 )

echo $cc

if test $cc -gt 90
then
echo " size greater than 90%"
fi

done

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please help me

Thanks & Regards
Jagannath Nikam

jagnikam

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LEARN ABOUT MINIX

zgrep

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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