search for the contents in many file and print that file using shell script - Shell Programming and Scripting

summer_cherry · #4 (**permalink**) 10-07-2007

Hi,
I think this one is ok.

input:

Code:

a:
H87I
Y788O
T347U
J23U

b:
file2 J23U U887Y I99U T556U
file3 I99O J99T F557J
file4 N99I T666U R55Y
file5 H87I T347U
file6 H77U R556Y E44T
file7 Y788O K98U H8I

code:

Code:

awk '
{
if (NF==1)
	a[$1]=$1
else
	for (i in a)
		if($2==a[i])
			a[i]=$1
}
END{
for (i in a)
print i " "a[i]
}' a b

output:

Code:

H87I file5
J23U file2
T347U T347U
Y788O file7