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Remove newline character between two delimiters

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# 1  
Old 06-07-2012
Remove newline character between two delimiters
hi i am having delimited .dat file having content like below.

test.dat(5 line of records)
======
Code:
PT2~Stag~Pt2 Stag Test.
Updated~PT2 S T~Area~~UNCEF R20~~2012-05-24 ~2014-05-24~~
PT2~Stag y~Pt2 Stag Test.
Updated~PT2 S T~Area~METR~~~2012-05-24~2014-05-24~~test
PT2~Pt2 Stag Test~~PT2 S T~Area~~UNCEFACT R20~true~2012-05-24~2014-05-24~~

sometime we are getting newline character in between data(like its there in 1st 2 lines hence it get spilted into 4).we want newline char only at end of line. if any new line character coming in between then want to replace with space.each line have 11 delimiters.

expected output Smilie3 line)
==============
Code:
PT2~Stag~Pt2 Stag Test.Updated~PT2 S T~Area~~UNCEF R20~~2012-05-24 ~2014-05-24~~
PT2~Stag y~Pt2 Stag Test.Updated~PT2 S T~Area~METR~~~2012-05-24~2014-05-24~~
PT2~Pt2 Stag Test~~PT2 S T~Area~~UNCEFACT R20~true~2012-05-24~2014-05-24~~



can you please suggest any command for that.
thanks in advance!!!!!

Moderator's Comments:
Mod Comment How to use code tags
Last edited by Franklin52; 06-07-2012 at 04:15 AM.. Reason: Please use code tags
# 2  
Old 06-07-2012
Code:
perl -pe '/^PT/ && chomp' test.dat

# 3  
Old 06-07-2012
Something like this?
Code:
awk '!/^~$/{printf $0; next}1' file

# 4  
Old 06-07-2012
Try:
Code:
awk -F~ '{while(NF<12 && getline p)$0=$0 p}1' infile

# 5  
Old 06-07-2012
Thanks alot for your quick reply. SmilieSmilie

@balajesuri
--this command is working fine if file have upto 3 expected output records

@Scrutinizer
really its amezing!!!!

Thanks,
sunil
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