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Joining two files second column in first file and first column in second file

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# 1  
Old 04-11-2012
Joining two files second column in first file and first column in second file
Dear all

I am having two list files , i want join these two file according second column in first file and first column in second file

1st file
Code:
1       A
2       R
3       B
4       s
5       S

2 nd file
Code:
A       m
S       n
B       i
s       L
R       f

resultent output should be
Code:
1 A m
2 R f
3 B i
4 s L
5 S n

could u pls help
Last edited by Franklin52; 04-11-2012 at 08:57 AM.. Reason: Please use code tags for code and data samples, thank you
# 2  
Old 04-11-2012
Code:
awk 'NR==FNR{a[$1]=$2;next}{print $1, $2, a[$2]}' file2 file1

This User Gave Thanks to Franklin52 For This Post:
suryanarayana
# 3  
Old 04-11-2012
Code:
perl -lane 'open I, "< file2";
for (<I>) {
    chomp; @x = split /\s+/;
    ($F[1] eq $x[0]) && print "$F[0] $F[1] $x[1]";
}; close I' file1

This User Gave Thanks to balajesuri For This Post:
suryanarayana
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