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Remove duplicate entries from the same line


 
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# 1  
Old 09-06-2013
Remove duplicate entries from the same line

Hello,

I have a file which have several duplicate entries on the same line:

File
Code:
ID    source    
1    GM    GF    GM
2    GM    GF    GM    GF    GM    GF    GM    GF    GM    GF        
3    GM    GF    GM    SF    GM    GF    GM    SF
4    FF    FF    FF    FF
5    FF    GM    FF    GM
6    FF    FF    FF    FF

and the output needs to be
Code:
ID    source
1    GM    GF    
2    GM    GF        
3    GM    GF    SF    
4    FF    
5    FF    GM    
6    FF

I tried using sort {file-name} | uniq -u but that removes duplicates from the whole file!

Thank you
# 2  
Old 09-06-2013
Code:
 awk '{for(i=1;i<=NF;i++){if(!A[$i,NR]++){S=S?S OFS $i:$i}}print S;S=""}' OFS="\t" file

ID      source
1       GM      GF
2       GM      GF
3       GM      GF      SF
4       FF
5       FF      GM
6       FF

This User Gave Thanks to pamu For This Post:
# 3  
Old 09-06-2013
This one saves some memory by deleting the Array:
Code:
awk '{printf "%s", $1; delete A; for (i=2;i<=NF;i++) if (!A[$i]++) printf "\t%s",$i; print ""}' file

This User Gave Thanks to MadeInGermany For This Post:

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