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  1. #!/usr/bin/perl
  2. use feature 'say';
  3. use strict;
  4. use warnings;
  5.  
  6. my $str = "name_of_file0000000546210618.A001.6476871457";
  7. say $str =~ s/name_of_file\K\d*(?=\d{6}\.A\d{3})//r;
Success #stdin #stdout 0.01s 5512KB
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Standard input is empty
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name_of_file210618.A001.6476871457
https://ideone.com/L8nfyN
language:
Perl (perl 5.28.1)
created:
4 years ago
visibility:
secret

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