问将文本区域值写入目录中的文件: Ajax POST

EN

var theFileData = $("#datatextarea").val(); // Value: "somevalue"

$("#saveDatatoDirPath").click(function() {

    $.ajax({
        url: '/path/to/textareaData.txt',   // Directory Path on linux host where I need to append theFileData value into textareaData.txt file
        type: 'POST',
        data: theFileData,      // theFileData variable value
        dataType: 'text' 
        success: function(result) {
            alert('the data was successfully written to host directory');
        }
    });
});