Join 2 files using first column


 
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# 1  
Old 06-27-2010
Join 2 files using first column

Hi,
I'm trying to compare the first column of two files (tab or whitespace delimited, either way's fine, I`ve got both) and print the lines that are identical for the first column of both files. Something like this:

File1
Code:
AAA	26	49	7	27	36	33	46	75	73	69
AAAAA	4	10			4		7	10	18	21
AAAAC					4			3		
CAAACT								3		
CAAAG		3				3	5		4	
TAC	16	20	7	11	17	22	22	27	7	8
TACA	10	8		4	6	7	8	11		4
TACAA		3			3					3

File2
Code:
AAAAA
TAC
TACA

Output
Code:
AAAAA	4	10			4		7	10	18	21
TAC	16	20	7	11	17	22	22	27	7	8
TACA	10	8		4	6	7	8	11		4

I've tried the join command, but haven`t been able to achieve this. Could you please help me. Thanks

Last edited by Scott; 06-27-2010 at 06:32 AM.. Reason: Code tags, please...
# 2  
Old 06-27-2010
Code:
while read pattern; do
grep "^$pattern [0-9]" file1
done <file2

This User Gave Thanks to pseudocoder For This Post:
# 3  
Old 06-27-2010
Once again THANKS. I owe you three.
 
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