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How to concatenate 2-columns by 2 -columns for a text file?

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# 1  
Old 03-05-2014
How to concatenate 2-columns by 2 -columns for a text file?
Hello,

I want to concatenate 2-columns by 2-columns separated by colon. How can I do so? For example, I have a text file containing 6 columns separated by tab. I want to concatenate column 1 and 2; column 3 and 4; column 5 and 6, respectively, and put a colon in between.

input file:
Code:
1 0 0 1 1 1
0 1 1 1 0 0
1 1 0 0 1 1
1 0 0 1 0 1
0 1 0 0 1 0
1 1 1 1 1 1
0 0 0 0 0 0

output:
Code:
1:0 0:1 1:1
0:1 1:1 0:0
1:1 0:0 1:1
1:0 0:1 0:1
0:1 0:0 1:0
1:1 1:1 1:1
0:0 0:0 0:0

Thanks in advance.
Last edited by huiyee1; 03-05-2014 at 09:46 AM.. Reason: Please use code tags for data and code samples
# 2  
Old 03-05-2014
Hello,

Following may help you in same.

Code:
awk '{$1=$1":"$2} {$3=$3":"$4} {$5=$5":"$6} {print $1" "$3" "$5}' concatenate_file

Output will be as follows.

Code:
1:0 0:1 1:1
0:1 1:1 0:0
1:1 0:0 1:1
1:0 0:1 0:1
0:1 0:0 1:0
1:1 1:1 1:1
0:0 0:0 0:0

Thanks,
R. Singh
# 3  
Old 03-05-2014
Another one:
Code:
awk '{$1=$1 ":" $2; $2=$3 ":" $4; $3=$5 ":" $6} NF=3' file

# 4  
Old 03-05-2014
overly simplified:
Code:
awk '{print $1":"$2,$3":"$4,$5":"$6}' <input file>

# 5  
Old 03-05-2014
Dear all,

Thank for the code. I know it can be done with awk. However, I have to concatenate for 200,000 columns. Is there any code to concatenate all 200,000 columns?


Many thanks.Smilie
# 6  
Old 03-05-2014
Try this:
Code:
sed 's/\([0-9]\) \([0-9]\)/\1:\2/g' file

# 7  
Old 03-05-2014
Dear Subbeh,

Thanks for your help. But, it does not work.
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