use strict;
use warnings;

my @changefile = (
       '/export/home/test1:aaaa:bbbb',
       '/export/home/test2:kkkk:llll'
       );

foreach my $list(@changefile){

my @splitlist = split(/:/, $list);

open(FILE, $splitlist[0]) or die "$!";
my @file = <FILE>;
close(FILE);

foreach my $line (@file) {
       $line =~ s/$splitlist[1]/$splitlist[2]/g;
       print "$line\n";
}

open(FILE2, "> $splitlist[0]") or die "$!";
print "$splitlist[0]\n";
print @file;
print FILE2 @file;
close(FILE2);
}