Activars

Gets File Extension

Here we can compare the syntax of these languages, how do they get file extension. 我们可以比较一下php, perl, ruby, bash, python的语法，同样的功能是如何实现的。 in PHP: $ext = pathinfo($file_name, PATHINFO_EXTENSION); in Perl: my $ext = ($file_name =~ m/[^.]+$/)[0]; in Ruby: ext = File.extname(file_name) in Bash: ext=${file_name#*.} name=${file_name%.*} in Python: import os ext = os.path.splitext(file_name)[1]

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