dispaly vg's and pv's? Post: 302233193

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Operating Systems AIX dispaly vg's and pv's? Post 302233193 by bakunin on Saturday 6th of September 2008 04:41:39 PM

09-06-2008

Registered User

Just a minor observation:

Quote:

Originally Posted by Rob Kerrr

MyID=`lspv $MyPV|grep 'PV IDENTIFIER'|awk '{ print $3}'`

Don't let era, our local "herder of useless cats", see that ;-)) :

.... awk '{ /PV IDENTIFIER/ print $3 }'....

would do the same as "....grep ...| awk ....", yes?

I have long given up on pointing out that backticks are considered harmful in the Korn shell and "`...`" should be replaced by "$(....)".

And for the audience: please use [ code ]...[ /code ]-tags when posting code. The difference is:

with code-tags:

Code:

for MyVG in `lsvg`
do
     echo "\n\n Volume Group: $MyVG\n------------------"
     for MyPV in `lsvg -p $MyVG|grep -v -e $MyVG -e PV_NAME|awk '{ print $1 }'`
     do
          MyID=`lspv $MyPV|grep 'PV IDENTIFIER'|awk '{ print $3}'`
          echo $MyPV $MyID
     done
done

and the same without:
for MyVG in `lsvg`
do
echo "\n\n Volume Group: $MyVG\n------------------"
for MyPV in `lsvg -p $MyVG|grep -v -e $MyVG -e PV_NAME|awk '{ print $1 }'`
do
MyID=`lspv $MyPV|grep 'PV IDENTIFIER'|awk '{ print $3}'`
echo $MyPV $MyID
done
done

bakunin

Last edited by bakunin; 09-06-2008 at 05:47 PM..

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igawk

IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME

       igawk - gawk with include files

SYNOPSIS

       igawk [ all gawk options ] -f program-file [ -- ] file ...
       igawk [ all gawk options ] [ -- ] program-text file ...

DESCRIPTION

       Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1).

       AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like

	      @include getopt.awk

       in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path.

OPTIONS

       See gawk(1) for a full description of the AWK language and the options that gawk supports.

EXAMPLES

       cat << EOF > test.awk
       @include getopt.awk

       BEGIN {
	    while (getopt(ARGC, ARGV, "am:q") != -1)
		 ...
       }
       EOF

       igawk -f test.awk

SEE ALSO

       gawk(1)

       Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995.

AUTHOR

       Arnold Robbins (arnold@skeeve.com).

Free Software Foundation					    Nov 3 1999								  IGAWK(1)