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Full Discussion: for loop returns more output with awk
Top Forums Shell Programming and Scripting for loop returns more output with awk Post 302450636 by Daniel Gate on Friday 3rd of September 2010 10:10:35 AM
Old 09-03-2010
for loop returns more output with awk
I need to get total number of hdisk not assigned to any VGs.
Code:
PDC # lspv |grep None |awk '{print $1}' |wc  
     131     131    1099

So, it shows 131 hdisks.

I need to look at the individual hdisk fget_config info like below:
Code:
PDC # fget_config -Av |grep hdisk230   
hdisk230 dac1  229 db4epic7

If I put these lines in for loop,
Code:
for diskname in $(lspv |grep None |awk '{print $1}')
do
fget_config -Av |grep $diskname 
done

the output gives me total number of hdisk as 362 with some duplicate hdisks info.

Please advise why for loop returns more outputs and the fix.

Thank you so much.
Last edited by Daniel Gate; 09-03-2010 at 11:24 AM.. Reason: code tags please
 

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ZGREP(1)						      General Commands Manual							  ZGREP(1)

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SYNOPSIS

       zgrep [ grep_options ] [ -e ] pattern filename...

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       Zgrep  invokes  grep  on  compressed  or  gzipped  files.   These  grep	options  will  cause  zgrep  to  terminate  with  an  error  code:
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