Shell Programming and Scripting

Hello again, I'm still working on the redo of my script I created before and came across a grep question.

I'm on SunOS 5.9 and using the Korn Shell. I'm writing a function to check for validation of root disks being mirrored. If the server allows me to use metastat, I'm looking to show it has root disks, it has mirrors, and that the status is "okay". As always when I post, I give a little to take a little.

My Offering, the first 2/3rds of my Metastat Mirror Check Function:

#!/bin/ksh
#set -x
mirnumvar=`metastat | grep "^d" | grep "Mirror" | cut -d: -f1`
for varmirnum in $mirnumvar
do
#echo $varmirnum
mirvar=`metastat | grep "^d" | grep "Mirror" | grep $varmirnum | cut -d: -f1 | cut -dd -f2`
#echo $mirvar
submirvar=`metastat | grep "^d" | grep "d.$mirvar" | cut -d: -f1`
#echo $submirvar
echo "Mirror $varmirnum Contains Submirrors:" $submirvar
done

This gives output of:
Mirror d4 Contains Submirrors: d14 d24
Mirror d3 Contains Submirrors: d13 d23
Mirror d1 Contains Submirrors: d11 d21
Mirror d0 Contains Submirrors: d10 d20
Mirror d5 Contains Submirrors: d15 d25

I'm now working on grouping together statuses with their respective submirrors. One of the commands I've tinkered with that has gotten me close to the results is the following:

metastat | egrep 'Submirror of|State:'

Results:

State: Okay
State: Okay
d14: Submirror of d4
State: Okay
d24: Submirror of d4
State: Okay
State: Okay
State: Okay
d13: Submirror of d3
State: Okay
d23: Submirror of d3
State: Okay
State: Okay
State: Okay
d11: Submirror of d1
State: Okay
d21: Submirror of d1
State: Okay
State: Okay
State: Okay
d10: Submirror of d0
State: Okay
d20: Submirror of d0
State: Okay
State: Okay
State: Okay
d15: Submirror of d5
State: Okay
d25: Submirror of d5
State: Okay

I have bolded what my desired results would contain, the submirrors and it's statuses underneath it. The other State: Okay's are from the Main root disk Mirrors. Would I be working with properties of grep to try and grep the line after the submirror or a different command to tackle this scenario. As always, hats off and many thanks to those that can tackle this conundrum.

~Ryan

Code:

metastat | sed -n '/Submirror/{p;n;p;}'

Submirror 0: d14
State: Okay
Submirror 1: d24
State: Okay
d14: Submirror of d4
State: Okay
d24: Submirror of d4
State: Okay
Submirror 0: d13
State: Okay
Submirror 1: d23
State: Okay
d13: Submirror of d3
State: Okay
d23: Submirror of d3
State: Okay
Submirror 0: d11
State: Okay
Submirror 1: d21
State: Okay
d11: Submirror of d1
State: Okay
d21: Submirror of d1
State: Okay
Submirror 0: d10
State: Okay
Submirror 1: d20
State: Okay
d10: Submirror of d0
State: Okay
d20: Submirror of d0
State: Okay
Submirror 0: d15
State: Okay
Submirror 1: d25
State: Okay
d15: Submirror of d5
State: Okay
d25: Submirror of d5
State: Okay

This is the result of the sed, again it's a close try but not what I was looking to get exactly. This is the desired output:

d14: Submirror of d4
State: Okay
d24: Submirror of d4
State: Okay
d13: Submirror of d3
State: Okay
d23: Submirror of d3
State: Okay
d11: Submirror of d1
State: Okay
d21: Submirror of d1
State: Okay
d10: Submirror of d0
State: Okay
d20: Submirror of d0
State: Okay
d15: Submirror of d5
State: Okay
d25: Submirror of d5
State: Okay

I appreciate the efforts though! I'm going to keep trying today at work too, thanks again everyone!

Worked on it with my Unix Mentor and wanted to share the results, vgersh, you were real close!

2 ways to approach with the "sed" command:

Approach 1: metastat | sed -n '/Mirror/{n;p;n;p;n;p;n;p;}'
Results:
Submirror 0: d14
State: Okay
Submirror 1: d24
State: Okay
Submirror 0: d13
State: Okay
Submirror 1: d23
State: Okay
Submirror 0: d11
State: Okay
Submirror 1: d21
State: Okay
Submirror 0: d10
State: Okay
Submirror 1: d20
State: Okay
Submirror 0: d15
State: Okay
Submirror 1: d25
State: Okay

Which is probably what i'll use to work with for the script, but there's also

Approach 2: metastat | sed -n '/Mirror/{p;n;p;n;p;n;p;n;p;}'
Results:
d4: Mirror
Submirror 0: d14
State: Okay
Submirror 1: d24
State: Okay
d3: Mirror
Submirror 0: d13
State: Okay
Submirror 1: d23
State: Okay
d1: Mirror
Submirror 0: d11
State: Okay
Submirror 1: d21
State: Okay
d0: Mirror
Submirror 0: d10
State: Okay
Submirror 1: d20
State: Okay
d5: Mirror
Submirror 0: d15
State: Okay
Submirror 1: d25
State: Okay

Either way works, but there you go! Thanks again for all the effort and help!
~Ryan

Both approaches are good, i guess i'll use this for almost the same operation, thanks for sharing this.