Shell Programming and Scripting

BAQ001 /dev/rdsk/c2t0d7 1C13 (M) RW 69053

The line above is from a text file. I want to use awk to extract the value in the third column 1C13.

I just can't seem to get the syntax right or something. Any help would be appreciated.

Thanks,

Code:

awk '{ print $3 }' yourfile.txt

Code:

 echo "BAQ001 /dev/rdsk/c2t0d7 1C13 (M) RW 69053" | sed 's/^.[^ \t]* *[^ \t]* //;s/ .*//'

Very cool. No I have two files called "std" and "vdev"

here is a sample of the values in file "std"

1C13
1C1B
1C23
1C2B
1C33
1C3B
1C43
1C4B
1C53
1C5B
1C63

Here is a sample of vale in file "vdev"

26BF
26C7
26CF
26D7
26DF
26E7
26EF
26F7
26FF
2707
270F


The first and second list correspond to each other, e.g. 1st list has the value 1C13, and the second list has a value of 26BF. They need to be combined as follows:

1C13 26BF

And then another repeating value has to be in front of each line.

example

000190102326:1C13 26BF

Any suggestions would be greatly appreciated.

Hello, ricnetman:

You can join corresponding lines in std and vdev with the paste command:

Code:

paste -d' ' std vdev

If the repeating value is always the same, it can be prepended to each line with:

Code:

paste -d' ' std vdev | sed 's/^/000190102326:/'

In case there are more related questions to follow, why don't you try to give us a big picture view of what's going on? I say that because it seems that you are asking for help with each little step; if we knew more we might be able to not only provide you with better help for those steps, but perhaps even suggest a better approach in general.

Regards,
Alister

Thanks Aliister;

The last answer put everything together for me.

In our environment, we used symetrix disk arrays. And we use an EMC NetWorker module for performing snapshot backups.

In addition to having the correct modules in place, a "symm.res" file AKA a "sets" file needs to be generated that has the serial number of the symm e.g. 000190102326, and a standard device and a virtual device e.g. 1C13 26BF.

There are three types of clones used on symms BCVs, Clones, and VDEVS.

We had already created a script for clones but did not know the correct sym commands to use to render the same results for VDEVs, and ran out of time, so I thought it would be prudent to use a combination of awk and other commands to achieve the same results until my colleague had time to modify our script script.

Thanks to all of you for the help.

ricnetman