Help to split a file into multiple files

[Praveen Hari]

Hi,

I have a Large Newsgroup file in rnews format.
I need to split messages in this file into sub files so that each message in a seperate file.
Please see below for file format. Each message starts with a line "#! rnews 0". I want to read from that line to next "#! rnews 0" not including the "#! rnews 0". The message number is displayed at the end of line starting "xref". I want to name the file as this number. Any help from AWK/SED Guru's are appreciated.

#! rnews 0
Newsgroups: xxx
From: xxx
Subject: xxx
Date: xxx
Xref: linux-nntp sybase.test:6

zzzzzzzzzzzzzzzzzzzzz


#! rnews 0
Newsgroups: xxx
From: xxx
Subject: xxx
Date: xxx
Xref: linux-nntp sybase.test:7
zzzzzzzzzzzzzzzzzzzzz

[Michael Tully]

Have you looked at the split/csplit commands ?

[Praveen Hari]

I have never used csplit. Cany you help me with some code snippets.
I am not expert in Shell scripts
Thanks

[H.Merijn Brand (procura]

# perl -ne'BEGIN{$/="#! rnews 0\n"}chomp;$_||next;open STDOUT,">news.".++$i' file

untested

Enjoy, Have FUN! H.Merijn

[James A. Donovan · Accepted solution]

Try:

csplit -k myfile '/#! rnews 0/' '{*}'
rm xx00

for file in $(ls xx??);do
newname=$(grep ^Xref ${file}|awk -F":" '{print $3}')
mv ${file} ${newname}
done

[Michael Schulte zur Sur]

Hi,

try this also.

greetings,

Michael

[Michael Schulte zur Sur]

Hi,

my last solution had a little flaw.
It forgot the text of the news. :-(
try this one.

have fun,

Michael

[Praveen Hari]

csPlit works fine.
I need help to do following in each file:
Each file has format:

#! rnews 0
Newsgroups: xxx
From: xxx
Subject: xxx
Date: xxx
Path: linux-nntp!forums-master!forums-1-dub!forums-1-dub!forums-master.sybase.com!forums-1-dub.sybase.com
Xref: linux-nntp sybase.test.xml:99
zzzzzzzzzzzzzzzzzzzzz

1)I need to replace "linux-nntp" in the line starting XRef: to "test".
2)I need to extract the number after sybase.text.xml from the line starting XRef: to a variable
3)Also I need to delete the text "linux-nntp!forums-master!" from the line starting "Path:"

Can soem one provide scripts for doing these operations.
Thanks