Your problem is that you are only using the filename to open the file not the fullpath. 

my $dir = "INPUT";
my $pattern = '.txt';
opendir DIR, $dir or die "cant open dir";
my @files = grep /\.txt/,(readdir DIR);
closedir DIR;
#print "@files\n";
foreach my $file (@files){
    my $filepath = "$dir/$file";
    print "$filepath\n";
    open (INF, $filepath)||warn "Can not open $filepath";
    $data=join ("", <INF>);
    print "$data\n";
 }

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In reply to Re^3: Running Batch of Files by tokpela
in thread Running Batch of Files by tej

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