toddw-as

var entry = ko.places.manager.getSelectedItem();
var koFile = entry.file;
// Unix style permissions (octal)
var permissions = koFile.permissions.toString(8);
var result = ko.dialogs.prompt("File: " + koFile.baseName, "Permissions:", permissions);
if (result !== null) {
    koFile.chmod(parseInt(result, 8));
}