Hello guys,
I'm back again with the 2nd
part of Cool Batch Tricks. In this series, I present some cool Batch Files
& try to explain how they work. If you still haven’t seen the first part of
the series, Click Here.You should watch the first part as it will help you to
understand the code.
So, Let’s start.
Today, we will again learn two cool but
very easy and programs. They are :-
1.
Folder Bomber
This program creates folders with random
names. You can set a limit or create unlimited folders (Can be used as a Virus,
but IF SOMETHING WRONG HAPPENS DON’T BLAME ME)
Code:
@echo off
Title
Folder Bomber
color a
:start
cls
echo.
echo.
echo NOTE :
Folders will be bombed in a folder called bomb
echo.
echo.
echo.
echo.
echo Folder
Bomber
echo.
echo.
echo Choose
an Option??
echo 1.
Limited
echo 2.
Unlimited
set /p
a=Enter Choice:
if %a%==1
goto limited
if %a%==2
goto unlimited
cls
echo Wrong
Choice
pause
goto start
:unlimited
md
bomb\%random%
cls
goto unlimited
pause
:Limited
set i=0
echo How
many folders to bomb??
set /p
b=Enter no. of Folders
:s
md
bomb\%random%
set /a
"i=i+1"
if %i%==%b%
goto exit
goto s
:exit
echo %b%
folders bombed successfully
pause>nul
exit
Output:
I won’t be
explaining the lines I already explained in previous posts.
The 2nd
line ‘Title Folder Bomber’ sets the Title to Folder Bomber in the Title Bar.
The command’echo.’ Is used to print a blank line.
The if condition
checks that if value of a is equal to 1, if true, then it directs the interpreter
to the ‘Limited’ Section. The same is for next if condition.
The ‘cls’ command
is used to clear the screen. The ‘md’ command means Make directory. It creates
a new directory named ‘bomb’ & also creates a sub-directory of the value of
random.
In limited Section
we set the value of variable ‘i’ to 0. Then we create a loop with a condition
inside it. If the condition is matched then the interpreter jumps out of the
loop, else it repeats the commands in the loop.
We’ve used nul in
front of pause with ‘>’, so pause won’t display any text when executed.
2.
Calculator
As the name suggests, this program is used to calculate the values
of expressions entered.
Code:
@echo off
color a
Title Calculator
:Start
cls
echo -----------
echo Calculator
echo -----------
echo Enter the expression you want to
calculate
set /p e=Expression :
set /a "x=%e%"
echo The answer is %x%
echo Do you want to calculate another
expression ?
set /p y=Press NO to exit :
if %y%==No GOTO Exit
if %y%==NO GOTO Exit
if %y%==no GOTO Exit
GOTO start
pause
:Exit
echo Exitting Program...
pause
exit
Output:
Here, we’ve used
the set command with another parameter i.e ‘/a’. With this parameter, we can
calculate the the value of an expression. We get the expression through the
variable ‘e’ and set the output value of this expression to’x’. Then we print
the variable ‘x’. Then we ask the user to repeat the process or not. Thus, it
is so simple
2. Calculator
So, these were the two programs of this tutorial.
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