I have a bunch of files in a folder.

file_1.1_2.1.txt, file_1.2_2.2.txt and so on.

I am reading those files and extracting the info from the file name file_<data1>_<data2>.txt. After getting the info it is assigned to array @data1 and @data2 . I only require files in this format, there are also other files which i dont need. I am trying open the files using foreach. 
foreach my $dat1 (@data1){
  foreach my $dat2 (@data2){
   open (FH, "<", "file_$dat1\_$dat2.txt") or die "a horrible death $!
+";
   .....do something......
  }
}

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If I run this I am getting error "No such file or directory." but running it outside the loop works. For Example. 
open (FH, "<", "file_1.1_2.1.txt") or die "a horrible death $!";

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In reply to How to open file inside loops with file names generated using an array? by skooma

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