01.txt
>SR1.2
>SR1.3

02.txt
>SR1.1 HWI-ST

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"if the first line and the first column are the same"
Your first line and the first column arent the same. Thats the problem to begin with, clearly the line you are trying to match is not on the first line of file 2.

In reply to Re: Two files, if the first line and the first column are the same, print this line, the second line, the third line,the fourth line. by james28909
in thread Two files, if the first line and the first column are the same, print this line, the second line, the third line,the fourth line. by yueli

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