Macos – Is Automator’s “Filter Finder Items” action broken

From the Library help of Standard Additions:

POSIX file n : A file object specified with a POSIX (slash)-style pathname.

• POSIX path (text, r/o) : the POSIX (slash)-style path of a file or alias object

There is no container property.

You need what Finder considers an item to be able to do this. One way to get it:

set b to container of (a as alias)

I tried a few cases, and seems it works as you need:

Shell script, usr/bin/perl, pass input as arguments.

use File::Find;

find({ wanted => \&find_files, no_chdir => 1 }, @ARGV);

sub find_files
{
    if (-f $_)
    {
        ($file) = $_ =~ /.*\/(.*)$/;
        push (@all_files, $_) if ($file ne ".DS_Store");
    }
    else
    {
        push (@all_folders, $_);
    }
}

sub osascript($) { system 'osascript', map { ('-e', $_) } split(/\r/, $_[0]); } 

foreach(@all_files)
{
    @paths = split(/\//, $_);
    for $i (0..$#paths-1)
    {
        if ($i == 0)
        {
            $x = "$paths[$i]";
        }
        else
        {
            $x = "$last[$i-1]/$paths[$i]";
        }
        push(@last, $x);
        $temp{$x} ++;
    }
    @last = ();
 }

@not_gray_folders = keys %temp;
foreach(@all_folders)
{
    $folder = $_; $flag = 0;
    foreach(@not_gray_folders)
    {
        if ($folder eq $_)
        {
            $flag = 1;
        }
    }
    if (!$flag)
    {
        $label = 7;
    }
    else
    {
        $label = 0;
    }
    &osascript ("tell application \"Finder\" to set label index of alias POSIX file \"$folder\" to $label");
}