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removing carriage returns in text file

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# 1  
Old 09-15-2009
removing carriage returns in text file
Hi

I have a text file that looks like this:
A
B
C

D
E
F

G
H
I

I want it to be reformatted to
A;B;C;
D;E;F;
G;H;I;

I want a shell script to do this. Any help is greatly appreciated.

Thanks
# 2  
Old 09-15-2009
no need of script this sed oneliner will do it..
Code:
sed -ne 'H
/^$/{x
s/\n/;/g
s/;//
p
}' filename

# 3  
Old 09-15-2009
Code:
$ 
$ cat f1
A
B
C

D
E
F

G
H
I

$ awk '{if (/^$/){print} else{printf("%s;",$0)}}' f1
A;B;C;
D;E;F;
G;H;I;
$ 
$

tyler_durden
# 4  
Old 09-16-2009
Thanks tyler_durden and vidyadhar85 for the quick replies!!
# 5  
Old 09-16-2009
Another one Smilie
Code:
awk 'ORS=(NF)?";":"\n"' file

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