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Help with print if two columns is somehow similiar

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# 1  
Old 01-18-2016
Help with print if two columns is somehow similiar
Input File:
Code:
GO:0009437,GO:0006355,GO:0006351  GO:0009437
GO:0006777,GO:0032324  GO:0035433,GO:0015992,GO:0071422
GO:0009082,GO:0009097,GO:0006566  GO:0009082,GO:0006351
GO:0000160,GO:0045893,GO:0006351  GO:0006071,GO:0045892,GO:0006351
GO:0009244  GO:0009244
GO:0046417,GO:0009094,GO:0006571  GO:0046417,GO:0009094,GO:0006571
.
.

Desired output File:
Code:
GO:0009437,GO:0006355,GO:0006351  GO:0009437
GO:0009082,GO:0009097,GO:0006566  GO:0009082,GO:0006351
GO:0000160,GO:0045893,GO:0006351  GO:0006071,GO:0045892,GO:0006351
GO:0009244  GO:0009244
GO:0046417,GO:0009094,GO:0006571  GO:0046417,GO:0009094,GO:0006571
.
.

Command I try:
Code:
awk '$1~$2{print}' Input_File
GO:0009437,GO:0006355,GO:0006351  GO:0009437
GO:0009244  GO:0009244
GO:0046417,GO:0009094,GO:0006571  GO:0046417,GO:0009094,GO:0006571

I plan to print out whatever is "somehow similar" between Column 1 and Column 2.
"," is a separator to separate the elements between all record in Column 1 and Column 2.

Thanks for any advice.
Last edited by perl_beginner; 01-19-2016 at 04:59 AM..
# 2  
Old 01-18-2016
Would
Code:
awk '
        {n = split ($2, T, ",")
         for (; n>0; n--) if ($1 ~ T[n]) print
        }
' file
GO:0009437,GO:0006355,GO:0006351  GO:0009437
GO:0009082,GO:0009097,GO:0006566  GO:0009082,GO:0006351
GO:0000160,GO:0045893,GO:0006351  GO:0006071,GO:0045892,GO:0006351
GO:0009244  GO:0009244

do?
# 3  
Old 01-18-2016
Hi RudiC,

It shown "awk: ^ syntax error"?
Am I do anything wrong?

Thanks for advice.
# 4  
Old 01-18-2016
What OS and awk version do you use?
Quote:
Originally Posted by Don Cragun
If you are using a Solaris/SunOS system, use /usr/xpg4/bin/awk or nawk instead of awk .
# 5  
Old 01-18-2016
Hi, I'm using x86_64 and GNU Awk 3.1.7 Smilie
So sorry still quite fresh with Unix T_T
# 6  
Old 01-18-2016
OK, where exactly does the error point to?

---------- Post updated at 12:07 ---------- Previous update was at 12:06 ----------

And, x86_64 is not an OS known to me.
# 7  
Old 01-18-2016
Hi, I type the below command at my interface (Unix OS):
Code:
awk ' {n = split ($2, T, ",") for (; n>0; n--) if ($1 ~ T[n]) print } ' Input_File
awk:  {n = split ($2, T, ",") for (; n>0; n--) if ($1 ~ T[n]) print }
awk:                          ^ syntax error
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