如何在Perl中检查文件系统中的一个路径下是否存在另一个路径？

if (-e "/path/to/existing/file") {
    print "The file exists.\n";
} else {
    print "The file does not exist.\n";
}

if (-d "/path/to/existing/directory") {
    print "The directory exists.\n";
} else {
    print "The directory does not exist.\n";
}

if (-f "/path/to/existing/file") {
    print "The file exists and is a regular file.\n";
} else {
    print "The file does not exist or is not a regular file.\n";
}