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Problem when using join command

 
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# 1  
Old 10-31-2011
Problem when using join command
Dear all,

I have two files (each only contains 1 column) as attached. I want to combined the two files and only show the common records in both files. But when I use join command only the last row was combined. Anyone know what is the problem? I don't know how to write the correct code to only show the common records also.

Thanks!
bmi_csort3.ps (735.5 KB) 
tag.txt (2.9 KB) 
# 2  
Old 10-31-2011
Are both files sorted?
# 3  
Old 10-31-2011
yes. both are sorted.
 
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