sed, awk, or something...help meeeeeeeeeee

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Hi All,

I don't know if I should use sed for what I'm about to ask, but it seems
like a good idea.  If awk is better, or something else entirely, that's
fine too.

I have two files.  File "1" looks like this:

AA
BB
CC
DD

AA
BB
CC
DD

File "2" looks like this:

BBBB1
BBBB2
BBBB3

So, "BB" in file "1" always occurs in the same spot (i.e. between lines
AA and CC).  Knowing that, how do I replace the first occurrence of "BB"
in file "1" with "BBBB1" from file 2, the second occurrence of "BB" in
file "1" with "BBBB2" from file 2, and so on?

I think a bash 'for' or 'while' loop may be useful here, too.  But, it's
the sed/awk/whatever bits I don't know how to do.  I've read some of the
man/info page, looked up sed help on the net, etc.  I'm still not sure
how to do the above with sed.

Thanks in advance!

Regards,

Ranbir

-- 
Kanwar Ranbir Sandhu
Linux 2.6.27.30-170.2.82.fc10.x86_64 x86_64 GNU/Linux 
13:29:18 up 9 days, 3:04, 3 users, load average: 1.13, 0.37, 0.18 


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