# File lib/phusion_passenger/platform_info.rb, line 360
        def self.find_all_commands(name)
                search_dirs = ENV['PATH'].to_s.split(File::PATH_SEPARATOR)
                search_dirs.concat(%w(/bin /sbin /usr/bin /usr/sbin /usr/local/bin /usr/local/sbin))
                ["/opt/*/bin", "/usr/local/*/bin"].each do |glob|
                        search_dirs.concat(Dir[glob])
                end
                search_dirs.delete("")
                search_dirs.uniq!

                result = []
                search_dirs.each do |directory|
                        path = File.join(directory, name)
                        if !File.exist?(path)
                                log "Looking for #{path}: not found"
                        elsif !File.file?(path)
                                log "Looking for #{path}: found, but is not a file"
                        elsif !File.executable?(path)
                                log "Looking for #{path}: found, but is not executable"
                        else
                                log "Looking for #{path}: found"
                                result << path
                        end
                end
                return result
        end