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How to get a file extension in PHP, PERL...
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How to get a file extension in PHP:
$ext = pathinfo($file_name, PATHINFO_EXTENSION);
How to get a file extension in Perl:
my $ext = ($file_name =~ m/[^.]+$/)[0];
How to get a file extension in Ruby:
ext = File.extname(file_name)
How to get a file extension in Bash:
ext=${file_name#*.} name=${file_name%.*}
How to get a file extension in Python (thanks to Jensen):
import os ext = os.path.splitext(file_name)[1]
