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#!/usr/bin/perl -w
# add/fix file extensions based on MIME type as detected by libmagic
use File::LibMagic;
use MIME::Types;
$magic = File::LibMagic->new;
$types = MIME::Types->new;
for (@ARGV) {
open my $fh, "<$_";
eval {
$desc = $magic->info_from_handle($fh)->{mime_type};
@exts = $types->type($desc)->extensions;
$ext = shift @exts;
$ext eq "jpeg" and $ext = "jpg";
$src = $_;
s/\.[^.]+$//;
-e "$_.$ext" or rename $src, "$_.$ext";
};
}
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