Example batch files scripts

The following batch script executes itself in SQL context. The trick is the GOTO command in the first line of the script. The batch script will then run the OSQL. In fact the file can be opened and executed in Query Analyzer as is, since the batch script in the file looks like a comment to the query language processor. Now we can embed SQL queries into a batch file. But how can we pass arguments from the batch script into SQL? This can be done using a temporary table.

Temporary tables live as long as the connection to the SQL Server. EXE twice? The trick is that OSQL allows to use the -i and -q option at the same time whereas: -q specifies a query string to be executed -i specifies a filename with SQL syntax to be executed Both the query string and the SQL file will be executed using the same Server connection. Some testing shows that the query string -q will always be executed before the -I SQL file, which allows us to use a query string to set up a temporary table.

The trick of renaming the Perl. However the solution I have seen so far needed batch code before and after the Perl script where as the solution presented below only needs some lines of DOS at the top. The added DOS script is generic and works independent from the name of the file. When running the batch the DOS command interpreter will read the first lines and execute the file itself in Perl context.

This example works just as the previews one but will wait 4 seconds before the application finally closes. This is just enough time to inspect the screen output before the window vanishes. The delay can probably be done much easier in Perl, but somebody just starting on Perl might find this still useful.

TOP Simple menu framework. Plug in a new menu item and coresponding script as single function block. Example: FTP -v -i -s:ftpscript.

Script Output. Example - Installation Framework. Features: simple and well structured settings changeable at runtime settings are persistent , the batch will remember all settings from the last run progress indication during simulated file installation. Download: BatchInstall. Simulating an installation for! Pretend to install!

This advanced batch template features: Initialization of the command processor Version History for manual script change tracking Window title of choice Delayed exit for unattended completion. Lets save this batch file as test. Comments are very useful to write a description for the command in a large batch file which contains any number of command and reference of another batch file; it makes the batch file easy to understand and modifiable. This will run java demo jar file, just navigate to your java maven base directory and run this batch file.

This batch file will run each of the files which belong to package, test, and deployment respectively; as a separate manageable process and will open a new console to log a command output for each of the batch file. The batch file was a very popular solution to executing a series of command one by one when DOS used to be a very popular operating system, Nowadays also batch script plays a very important role in various tasks such as to automate the configuration of the windows server or to schedule a task.

To re-iterate the batch-making process: first, create an empty text file. Right-click an empty space in a folder of your choosing, and select New , then Text Document. With the text file open, enter the following script. Our example will provide the main American news media outlets available online. The above script stacks one start "" parameter on top of the other to open multiple tabs. You can replace the links provided with ones of your choosing.

After you've entered the script, head to File , then Save As. Once you'd saved your file, all you need to do is double-click your BAT file. Instantly, your web pages will open. If you'd like, you can place this file on your desktop. This will allow you to access all of your favorite websites at once. Have you been downloading multiple files a day, only to have hundreds of files clogging up your Download folder?

Create a batch file with the following script, which orders your files by file type. Place the BAT file into your disorganized folder, and double-click to run. It's that simple. This batch script will also work with any type of file, whether it's a document, video, or audio file.

Even if your PC does not support the file format, the script will create a folder with the appropriate label for you. Relational operators allow of the comparison of objects. Below are the relational operators available. Logical operators are used to evaluate Boolean expressions. Following are the logical operators available.

The only logical operator available for conditions is the NOT operator. Batch Script language also provides assignment operators.

Following are the assignment operators available. The date and time in DOS Scripting have the following two basic commands for retrieving the date and time of the system. Following are some implementations which can be used to get the date and time in different formats. Each of these three standard files, otherwise known as the standard streams, are referenced using the numbers 0, 1, and 2. Stdin is file 0, stdout is file 1, and stderr is file 2.

One common practice in batch files is sending the output of a program to a log file. The following example shows how this can be done. If you append the number 2 to the redirection filter, then it would redirect the stderr to the file lists.

Following is an example. The pseudo file NUL is used to discard any output from a program. To work with the Stdin, you have to use a workaround to achieve this. The following example shows how you can redirect the output to a file called lists. After you execute the below command, the command prompt will take all the input entered by user till it gets an EOF character.

Later, it sends all the input to the file lists. By default when a command line execution is completed it should either return zero when execution succeeds or non-zero when execution fails. When a batch script returns a non-zero value after the execution fails, the non-zero value will indicate what is the error number. We will then use the error number to determine what the error is about and resolve it accordingly.

In the batch file, it is always a good practice to use environment variables instead of constant values, since the same variable get expanded to different values on different computers. Similarly, if we see that the variable userprofile is not defined then we should set the errorlevel code to 9. Now, if the Find.

In the following batch file, after calling the Find. If the variable userprofile does not exist, then nothing will be displayed in the console output. In the decision making chapter, we have seen statements which have been executed one after the other in a sequential manner. They are then classified into flow of control statements. There is no direct while statement available in Batch Script but we can do an implementation of this loop very easily by using the if statement and labels.

The "FOR" construct offers looping capabilities for batch files. Following is the general form of the statement. The above command will produce the following output if the batch file passes the command line arguments of 1,2 and 3 as Test.

The break statement is used to alter the flow of control inside loops within any programming language. The break statement is normally used in looping constructs and is used to cause immediate termination of the innermost enclosing loop.

A function is a set of statements organized together to perform a specific task. In batch scripts, a similar approach is adopted to group logical statements together to form a function. In Batch Script, a function is defined by using the label statement. When a function is newly defined, it may take one or several values as input 'parameters' to the function, process the functions in the main body, and pass back the values to the functions as output 'return types'.

Every function has a function name, which describes the task that the function performs. To use a function, you "call" that function with its name and pass its input values known as arguments that matches the types of the function's parameters.

Local variables in functions can be used to avoid name conflicts and keep variable changes local to the function. The ability to completely encapsulate the body of a function by keeping variable changes local to the function and invisible to the caller. This filter can be used to redirect any output to a file. This filter can be used to append any output to a file. Reading of files in a batch script is done via using the FOR loop command to go through each line which is defined in the file that needs to be read.

When a batch file is run, it gives you the option to pass in command line parameters which can then be read within the program for further processing. In Batch Script, it is possible to perform the normal folder based operations that would be expected in any programming language.

The listing of folder contents can be done with the dir command. This command allows you to see the available files and directories in the current directory. If the module name is not specified all loaded modules are displayed. Specifies that the "Column Header" should not show in the output. The above command will get the list of all the processes running on your local system. Following is a snapshot of the output which is rendered when the above command is run as it is. As you can see from the following output, not only do you get the various processes running on your system, you also get the memory usage of each process.

The above command will only fetch those processes whose memory is greater than 40MB. Following is a sample output that can be rendered. Applies a filter to select a set of tasks. Specifies the image name of the process to be terminated. DOS scripting also has the availability to start a new process altogether.

The above command will run the batch script test. Aliases means creating shortcuts or keywords for existing commands. Create a new file called keys. The below commands creates two aliases, one if for the cd command, which automatically goes to the directory called test. And the other is for the dir command. After which we are setting it to NULL.

Because we have set the value of d to NULL, the macro d will deleted. Windows now has an improved library which can be used in Batch Script for working with devices attached to the system. This is known as the device console — DevCon.