Thursday 7 February 2013

Introduction Of Batch File Programming



Batch file programming is the native programming offered by the Microsoft Windows Operating
System. Batch file is created using any text editors like notepad or WordPad. Batch files are often used for comprising a sequence of code, do some tasks, can delete a sequence of a file within a second. Batch file is really helpful for maintaining system logs
Whenever a Batch program is executed, it was interpreted line-by-line by the CLI (Command
Line Interpreter) command.com or the cmd.exe. The commands used while creating a batch file are case insensitive,(insensitive cases are those that  accept both small and upper case letters)

Modes:

There are two different modes that are supported by DOS (Disk Operating System), they were,
1. Interactive Mode.
2. Batch Mode (Silent Mode).

Interactive mode:

In interactive mode, when a command is executed, it interacts with the user for input and
depending upon the input supplied by the user Let’s take the ‘del’ command. The ‘del’ command is used for deleting files that reside inside a directory. Now I am going to delete all the files inside a folder named ‘a’, and when I executed the following command, it is interacting with me prompting “Are you sure (Y/N)?”, confirming the deletion operation, and depending upon my input, it decides what to do. If I hit ‘Y’ then it will delete the files specified, else if I hit ‘N’ then it won’t delete.
C:\>del a
C:\a\*, Are you sure (Y/N)? y
(I think we should not go for more details of Interactive Mode.)

Batch Mode:

Batch mode can also be referred as ‘Silent mode’ or ‘Quiet Mode’, and this is more opposite to
the interactive mode. The command that operates at batch mode will never interact with the user at any
instance, instead it will take care of every operation by itself.
For example, I am going to explain this by using the same ‘del’ command. There is a switch available for
the ‘del’ command, which makes the command to operate at silent mode, and that switch is ‘/Q’
C:\>del /Q a
C:\>
In this case, the command is not at all interacting with me, whether to delete those file or not.
In the above example, I have tried to delete the same files in the same folder by using the same command
but with a different switch. Anyhow both the commands will perform the same operation but the mode it
operates differs.

In next tutorial we will learn How to create a Batch file program.

Stay with us.

Who are hackers?



Hackers are those who want to be explore the Computer System, They find the ways to work more effectively  Computer Work, They are usually the master minds, or do things they weren’t intended to do. There are two types of hackers(basically there is also one another type: they are known as Gray Hat Hackers but this type is not ponder over so much nowdays):