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Top Forums UNIX for Dummies Questions & Answers print columns of a file in a for loop Post 302581759 by FelipeAd on Wednesday 14th of December 2011 03:15:40 AM
Old 12-14-2011
Thank you for your replies, ahamed and methyl here are some sample data

file1.txt
Code:
A    G    K    N    Q    T    W    
B   H    L    O    R    U    X    
C    I   M    P    S    V    Y   
D    J                        
E                            
F

and file2.txt
Code:
A p1 p2 p3
B s1 s2 s3 s4 
E a1 a2 
P f1 f2
J d1 d2 d3 d4 d5

I want to read each column sequentially
e.g. the first column
Code:
A
B
C
D
E
F

and output
Code:
A p1 p2 p3
B s1 s2 s3 s4 
E a1 a2

and then column 2,
Code:
G
H
I
J

and output
Code:
J d1 d2 d3 d4 d5

The files are tab-delimited
 

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