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Shell Programming and Scripting

Line space problem facing

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# 1  
Old 09-18-2009
Line space problem facing
Hi,

I got a list of file that all got the same standard format.
Can anyone teach me how to put the space in all of them?!

Input file:
>nucleotide1
AAAAAAAAACCCGGG
>nucleotide2
GGGGGGCCCCCTTTTA
>nucleotide3
GGTACACCACACTCAC
>nucleotide4
TTTGGAGAGAGACCCC

desired output:
>nucleotide1
AAAAAAAAACCCGGG

>nucleotide2
GGGGGGCCCCCTTTTA

>nucleotide3
GGTACACCACACTCAC

>nucleotide4
TTTGGAGAGAGACCCC



Thanks a lot for all of your guide and suggestion Smilie
# 2  
Old 09-18-2009
Code:
Input:
>nucleotide1
AAAAAAAAACCCGGG
>nucleotide2
GGGGGGCCCCCTTTTA
>nucleotide3
GGTACACCACACTCAC
>nucleotide4
TTTGGAGAGAGACCCC

Code:
$ sed 's/^>/\n>/g' filename

Code:
Output
>nucleotide1
AAAAAAAAACCCGGG

>nucleotide2
GGGGGGCCCCCTTTTA

>nucleotide3
GGTACACCACACTCAC

>nucleotide4
TTTGGAGAGAGACCCC

# 3  
Old 09-18-2009
Thanks a lot skmdu,
It is worked now d Smilie
I very appreciate for your help ^^

Quote:
Originally Posted by skmdu
Code:
Input:
>nucleotide1
AAAAAAAAACCCGGG
>nucleotide2
GGGGGGCCCCCTTTTA
>nucleotide3
GGTACACCACACTCAC
>nucleotide4
TTTGGAGAGAGACCCC

Code:
$ sed 's/^>/\n>/g' filename

Code:
Output
>nucleotide1
AAAAAAAAACCCGGG

>nucleotide2
GGGGGGCCCCCTTTTA

>nucleotide3
GGTACACCACACTCAC

>nucleotide4
TTTGGAGAGAGACCCC

# 4  
Old 09-18-2009
Code:
sed -n '/>/!{p;}
        />/{
        1{p;}
        1!{x;p;x;p;}
        }' a.txt

# 5  
Old 09-25-2009
can't work?!
Quote:
Originally Posted by summer_cherry
Code:
sed -n '/>/!{p;}
        />/{
        1{p;}
        1!{x;p;x;p;}
        }' a.txt

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