Script help

[Francois Bariselle_3]

Hi all,

In a file, I want add a string "CC" 2 lines before a know string "C".

Ex.:

My original file is :

A
B
??? --> unknown string
C
D

The result would be :

A
B
CC
???
C
D

How I do this with awk.

Thanks in advance.

Frank

[Pete Randall]

See this thread:

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x982ab941255cd71190080090279cd0f9,00.html


Pete

[James R. Ferguson]

Hi Frank:

Well, this case is the cousin of your other thread. This will work:

#!/usr/bin/sh
sed '/^B/{
n
iCC
}' filename
exit 0

Regards!

...JRF...

[Pete Randall]

Sorry, Frank - at first glance I thought they were the same.

Pete

[H.Merijn Brand (procura]

And what should

A
B
C
C
A
C

turn in to?

A
CC
B
CC
C
C
CC
A
C

?

if there is no such conflicts possible,

l1:/tmp 106 > cat xx
A
B
??? --> unknown string
C
D
l1:/tmp 107 > perl -ne'@p>1&&print shift@p;/C/&&print"CC\n";push@p,$_}END{print@p' xx
A
B
CC
??? --> unknown string
C
D
l1:/tmp 108 >

Enjoy, have FUN! H.Merijn