Generate a list of filenames like file1.txt, file2.txt, etc.
Perl 6 allows incrementing those kinds of filenames directly:
my $filename = 'file0.txt';
for 1..5 {
$filename++;
say $filename;
}
This program prints the list of consequent filenames:
file1.txt
file2.txt
file3.txt
file4.txt
file5.txt
Notice that after reaching 9, the e letter from file is incremented. Thus, file9.txt is followed by filf0.txt. To prevent that, add enough zeros in the template:
my $filename = 'file000.txt';
for 1..500 {
$filename++;
say $filename;
}
Now, the sequence starts with file001.txt and continues to file500.txt. Multiple file extensions in the template, say file000.tar.gz, are also handled properly, so the numeric part is incremented.