I would say rather than downloading a book, you can learn a lot about batch file programming using the internet. There are many very good websites. Programming Embedded Systems, Second Edition with C and Preface This book 'Batch File Programming' is written after experimenting and testing all Batch . The subject of this book is also known as "batch programming", even though " batch" refers not only to batch files for MS DOS and Windows command interpreter.
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Windows Batch File Programming/Book and Disk [Namir Clement Shammas] on portal7.info *FREE* shipping on qualifying offers. If you're among the many. portal7.info: Batchography: The Art of Batch Files Programming eBook: Elias The Batchography book is a boon for system administrators, build engineers. MS DOS Batch File Programming/Book and Disk [Ronny Richardson] on site .com. *FREE* shipping on qualifying offers. Describes the advantages of.
Introduction[ edit ] This book addresses bit Windows commands applicable to modern versions of Windows based on the Windows NT environment. You can find out which version of cmd. This book first describes using the Windows NT command interpreter, how it receives, parses, and processes commands from users. Then it describes various commands available. To obtain an extensive list of Windows commands and their short summaries, open the command prompt on any Windows computer, and type help. The subject of this book is also known as "batch programming", even though "batch" refers not only to batch files for MS DOS and Windows command interpreter.
The following command will display all the processes running in the background which occupies more than Kilobytes of memory,.
The following command is used to connect to the remote host with the IP address In this case, the specified process is a critical system process; hence it displayed the above message. The below command is used to connect to the remote machine with IP address The below command is used to name the Label of C: In case, if you are in the C: As given below,.
This command is useful only if your batch program accepts parameters from the user. The following example will clearly brief you how this command works,. As you can see in the above screenshot, after shifting, the first parameter gets the value of the second parameter and vice versa. The below command will convert the C: Where, Convert - Command C: NTFS includes a lot of features like compression and encryption providing both security and optimizing memory, also includes fast indexing and can use features such as Active Directory.
The shutdown command comes along with few switches that decide the operation to be done. For example, if you have already initiated a shutdown, you can abort the operation using the below command,.
This switch is often used to convey the reason for the shutdown or reboot. The below command will forcibly terminate all the currently running applications on the local machine and then log off the current user immediately,.
Once the program to run was scheduled, then it will run the program at the specified time, no matter whether the user is there or not, but the machine is supposed to be turned ON. Each scheduled task is assigned with an ID number. To schedule a notepad application to run in the remote machine When I entered into the command prompt of the remote machine As said earlier, each scheduled task is assigned with an ID number, and these ID numbers are used for various purposes like displaying the specified ID information and also for deleting the scheduled task.
Task ID: OK Schedule: Tomorrow Time of day: No Command: To delete the scheduled task, we have to specify the ID number of the task to be deleted. The above command will run the notepad application at 5: Environment variables are special variables that contain its values set by the operating system itself, other applications or by manual. Environment variables are set to reduce tasks and code complexity by calling them in program, since they are just placeholders that keeps track of the system properties and system wide changes, and then sets its value.
It holds values like drive path, currently logged in username, root drive, Operating System name and version and so on. Microsoft Windows XP [Version 5. Likewise other programming languages, batch file programming does support looping with the help of got statements and for statement. If the environment variable name is not. The above given command is used for displaying all the directories and sub directories.
The above piece of code is used for deleting prefetch files from the location C: In the below example, I have enclosed a snippet that I used for finding open port and if an open port is found, then it will telnet to it and establish a remote connection, but the user has to supply the IP address or the hostname as parameter to this program, only then it becomes effective. This replaces the default delimiter set of space and tab.
This will cause additional variable names to be allocated. The m-n. If the last character in. The following statement is used for listing all the directories and files available inside the C: The statement given below is used for displaying all the processes running in the background.
In this scenario, the comma is the delimiter used. The conditional statement enriches the features of the batch file programming. The conditional statements are widely used for making a decision, and in accordance to the decision taken, the result or the output is produced.
The following piece of code will help you in a better understanding of how it deals with files and folders,. In this case, the program will check for the directory C: The following piece of code shows how the decision making statements, takes a decision on comparing a string,.
In my case, I have already installed Mozilla firefox in my computer, and it has displayed the message accordingly. Similar to the operators we use in the batch programs, we may also use the following comparison operators in string form,.
This chapter will cover all the commands associated with the files and folder for performing operations such as creating a new file, folder, renaming it, displaying it, copying it, moving it and deleting it. Likewise other commands, this too have few switches available to narrowing down the result i. The following screenshot shows how this works,.
Every directory will have any one of the attribute set, the commonly used attributes are Read- only, Directory, Hidden files, Archived file, system file, indexed and so on. Here is a screenshot that displays all the files including the system files.
The following screenshot displays the system files alone. All the files and folders displayed in the above screenshot were operating system file, these system files are hidden by default.
The below screenshot will shows how it will display the output,. For example,. If you notice the above screenshot, the chdir command displays the current directory i. We are supposed to ensure that we are including the file extension while renaming a file, but this is not a case with directories.
Two primary things namely the source and the destination files are required to make the copy operation complete and successful. If no date is specified then it will copy the files whose source time is newer than the destination time. You can restrict either the type of file or by using the string, for example, if I want to avoid copying bitmap files, then I may use the below command,.
Exit Description code. Various errors including insufficient memory or disk space, an invalid drive 4 name, or invalid syntax. Symbolic link is nothing but the shortcut. Once the command is executed, then it will prompt you to confirm whether or not to delete those files.
If you notice the above screenshot, when the command gets executes, it not only remembers the path, but also changes the path to the specified directory. The below command is used to display all the available user accounts in the local machine,.
This will work, only if you have the administrator or the power user privileges on that machine but you can change your own password, else the access will be denied. If you are not in a networked machine, then it will display the following message,. When this command gets executed it will display the hostnames with its description if any.
Here is a screenshot of how it will display the available hostnames that is connected with the same network,. The requested service has already been started. For example, to check whether the NIC is working fine, then I have to ping the localhost either by using the hostname or by the IP address. As we already know that the loopback IP for a local machine is Here is what happens when the command gets executed; the computer on which the command is executed will send ICMP echo requests to the target machine specified on the same network, once the target receives the ICMP echo requests send by the source machine, then it will acknowledge the requests send by the source machine, which is also known as ICMP echo response or echo reply.
As mentioned in the note, the maximum size of a datagram is 65, For example, if I want to crash the remote machine Both the switch really helps in testing whether the routers and other networking device is the network is working fine or not.
By default the telnet daemon runs on the port number 23, and also establishes connection to the port 23 on the remote machine too. Once the command is executed, then the remote machine will prompt for credentials like username and password, and after the successful authentication you can do whatever you wish to do with the remote machine. This command really helps in starting and stopping a new remote connection, freezing a specified connection, monitoring and messaging specified remote sessions by using its sub-commands and switches.
If I want to establish a new remote connection to a remote computer that accepts a telnet connection, then I can use the below command,. By default the port number for the telnet is port number: The following piece of tracert command is used to trace the route to the www.
In the above example, it was clear that any data packet sent from my computer has to cross the 7 displayed hops between my computer and the Google. The hops found in the path are given along with the IP address and the microseconds taken to reach the hop. In the below example I have reduced the hop count from 30 to 5. Tracing route to w3cert. If the target host www. Connection-specific DNS Suffix. IP Address. The below command will display the DNS cached information.
Data Length. I was downloading torrents from the torrent portal piratsite, and that too is displayed over there in the DNS cache. Commands are:. Even though there are lot of ftp commands available, only few are utilized for efficient usage, and I am going to brief you with very few useful FTP commands here.
Once the connection is established, then it will display you with a banner that contains a lot of juicy info that are really helpful for hackers and this information includes the daemon name along with the version, timestamp and so on. Server port: User dark-coderz. Password required Password:. Once the transfer is completed then it will display the number of bytes received along with the time taken to download the file.
The above screenshot briefs you the same operation of downloading a file from the remote ftp server. The below screenshot briefs you how to send a local file to a remote machine via FTP,.
The text file may contain pre-written commands for step by step actions such as logging in, uploading and downloading multiple files and this too varies in accordance with the user requirements. This information is also helpful in logging and monitoring networking activities, also for checking the connectivity and the speed.
In the above screenshot, you can see that instead of displaying the hostname of the local and remote machine, it displays the IP addresses and the port numbers in a numerical form. The below screenshot reveals the PID of the Chrome. Here is a screenshot taken and here is how the routing information looks like,. The ARP plays a vital role in establishing connections between networked computers by making use of the IP addresses and the MAC Address Physical Address and is very useful in updating the routing tables.
The source machine will broadcast an ARP packet requesing the MAC Media Access Control or physical address of the destination machine, since this message is broadcasted, the machines other than the destination will simply discards the request, where as the destination host alone will respond the request made by the source machine.
The destination host will fill in its physical address and send it back to the source machine, once both the machines came to know about their IP addresses and the physical address, they start to communicate with each other and shares what ever they want.
The above figure shows that the source machine has the IP address of The machine which ever receives the ARP broadcast will simply discard the packet except the destination host. Once the destination host receives the ARP request made by the source, then it will respond with an ARP response packet which contains the MAC address of the destination host, once both the souce and the destination computers came to know their IP addresses and the MAC addresses then they start to communicate with each other.
Internet Address Physical Address Type If you notice the two given screenshots above, the Physical address is not displayed, since I have disabled my local area network connection.
If you notice the above given screenshot, it clearly shows that the ARP entry Now I am going to add a new entry of IP address If you notice the above screenshot, the entry There are lot more network troubleshooting commands available, but those which are explained above plays a vital role in network troubleshooting.
The few of the important networking commands that are not covered in this book is netsh, nslookup and so on. Until the previous chapter we have seen few useful commands and their usage, and a little bit idea of how to construct a batch file program. In this section I am going to enclose few useful batch scripts, which gives you an idea on constructing a useful batch files.
By using a batch program you are not only making your tasks easier, but also used for playing sound files by using the native mplay Here comes the code,. Copy the above code in a notepad file and save it as a. The one of the primary use of the batch file is logging system activities.
Periodic monitoring and logging activities is a part of security auditing. Copy and paste the above html program in a notepad file and save it with the. So this is the log generated in my system after executing the batch that I have created, likewise you too can customize or mess with the batch program given above as per your wish and need.
Once the password is matched, then the folder becomes visible, so that you can access the folder again. The following batch program is used to organize bookmarks in an interactive manner; you have to manually update this file in order to do this. I am sure that this is an old fashion, but it might be useful in learning batch programming. I think we have already used this program in the above chapters, any how I am including this again in the code snippet, where this program is used to clear all the craps and temporary data from your computer which are considered to be unnecessary, and when this gets deleted, it will clears the space that are hogged up by the temporary caches and finally speeds up the computer performance little bit.
This program will clear all the temp files at 10AM on daily basis, only if logged on. The following program checks for open ports by telnetting each port starting from 1 to 20, and if it detects an open port, then it will start a telnet session and reveals the open port. You can also change the port range by changing 1 and 20 to the number you wish. Using a batch file, you can access the registry editor in windows machines to create a new entry, modify an existing entry and even deleting an existing entry.
This can be done manually with the registry editor regedit. Modifying registry values incorrectly may land your Windows Operating system in trouble, so its always recommended to export your registry before modifying it, more over the author solely will not take responsibility for your actions.
The changes made to registry will come alive, only if a reboot or log off is made. Just copy the above code and paste in a notepad with. Copy the above given batch program and save it with a.
Then the batch program will make the newly create spk. Likewise you may replace the text as per your wish. Welcome Cybercrawler.
Sounds Good na ;. This program is handy and there is no need for you to manually change the IP address every time, if there is a need, just a double click will do it for you. The hostname of the recipient is good enough to chat with them. Copy and paste the above program in a notepad file and save it as a batch file, you will be getting a pop up windows that exactly looks like below screenshot, when you execute the batch file,.
In the user field you have to enter the system name of the recipient, and in the message field type in the message that you wanna convey to the recipient. You may use multiple chat with various persons at the same time. As everyone is aware that windows operating system consists of a built-in administrator account, which has got all the privileges on that particular machine, we are going to use a simple batch program to change the password for that built-in administrator account,.
By using a batch program you can set a reminder for yourself in your computer, so that it will remind you with a pop up message, sound, greetings or whatever at the exact same time when you want it to remind you.
Say, if I want my computer to remind me at This program will pop up the greeting that was shown above, exactly at 9: All that information given in this book is only for educational means, and the author of this book solely will not hold responsibility for whatever you mess with this stuff. There were few things that are un-covered in most of the batch programs, and that is nothing but the dark-side of the batch.
Batch program offers its programmers to create their custom viruses just by misusing the way the command works, which leads to the creation of batch viruses. In this chapter we are going to learn about the dark-side of the batch by learning how to misuse commands to create batch viruses.
Here is a Simple batch virus that contains only 6 lines, has the tendency to replicate itself again and again and keeps on creating a folder with same name, until a user stops it. Save it as a batch file with the extension.
Hey your computer got infected by Virus. Not even a single anti-virus can detect this virus now. Wanna try? This virus program will begin its operation at C: It automatically assigns administrator rights to the user account that was created, then shares the root drive 'C: It will create a VBScript file with name 'warnusr. Since the time and date has been already modified by the virus, it will automatically pop up a message stating 'You are requested to restart your Computer Now to prevent Damages or Data loss' exactly at Whenever the user try to login to the computer, it will automatically reboots continuously, because the command 'shutdown -r' is set with time 00, and kept in start-up folder, the user has nothing to stop this unless he enters in safe mode and delete the file, more over the file is set with system and hidden attribute making it invisible.
The only way to stop this is to enter in safe mode and disable the start-up items, and then delete the file that reside in C: Batch file can has the tendency to modify the transfer zones by editing the hosts.
This may also be used for phishing, i. This program creates a new entry in the hosts file, so that whenever an user attempts to move to www.
When the above given batch program is executed, it will open up the following applications such as notepad, word document, Microsoft paint, WordPad, command prompt, my documents, control panel, and calculator in an infinite loop causing the system to collapse and as a result the system simply crashes or reboots.
Just imagine the same using a fork concept; oops! Message annoyer is a batch program that uses the same concept as above, but will interact with the user anyhow annoying and irritating them by popping up some message box containing some messages in it.
This message box will pop up until for endless loop, which really annoys the person sitting before the computer. Even these small popup windows may crash the computer, if it overloads the memory.
BAT file set up the system date and time, initialize the DOS environment, load any resident programs or device drivers, or initialize network connections and assignments. COM line by line, as if it were a list of commands entered manually, with some extra batch-file-specific commands for basic programming functionality, including a GOTO command for changing flow of line execution. Early Windows[ edit ] Microsoft Windows was introduced in as a graphical user interface -based GUI overlay on text-based operating systems and was designed to run on DOS.
BAT file to allow automatic loading of Windows. In the earlier versions, one could run a. Windows 3. COM to run batch files. It also included a version of REXX , a more advanced batch-file scripting language. The named program can be a script file; this is similar to the!
Windows NT introduced an enhanced bit command interpreter cmd. CMD or. BAT extension. In most cases, operation is identical if the few unsupported commands are not used. COM can be disabled for compatibility. Microsoft released a version of cmd. As of Windows 8 [update] , cmd. COM can be run as well in bit versions of Windows able to run bit programs. COM or cmd. COM does not recognize this file name extension, so cmd.
In addition, append , dpath , ftype , set, path, assoc and prompt commands, when executed from a. These scripts are faster, especially with longer ones, as the script is loaded entirely ready for execution, rather than line-by-line.
COM and cmd. Non-existent parameters are replaced by a zero-length string. They can be used similar to environment variables , but are not stored in the environment. Microsoft and IBM refer to these variables as replacement parameters or replaceable parameters, whereas Digital Research, Novell and Caldera established the term replacement variables  for them.
JP Software calls them batch file parameters. When executed, the following is displayed: Hello World! Press any key to continue. Explanation[ edit ] The interpreter executes each line in turn, starting with the first.
The symbol at the start of any line prevents the prompt from displaying that command as it is executed. After a key is pressed, the script terminates, as there are no more commands. In Windows, if the script is executed from an already running command prompt window, the window remains open at the prompt as in MS-DOS; otherwise, the window closes on termination.
Limitations and exceptions[ edit ] Null values in variables[ edit ] Variable expansions are substituted textually into the command, and thus variables which contain nothing simply disappear from the syntax, and variables which contain spaces turn into multiple tokens.
This can lead to syntax errors or bugs. The text that is being compared to the variable must also be enclosed in quotes, because the quotes are not special delimiting syntax; these characters represent themselves.