How to install NASM and compile Assembly program in kali linux.

Here i am going to show you how you can install NASM compiler to compile your assembly program in kali linux or any other linux.

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Step 1: Open terminal in your linux.
Step 2: To download and install linux write the command on your terminal
           

                              "apt-get install nasm"

Step 3: Open your text editor and write Hello World program and save it with  .asm file extension.

  section .text
global _start
  _start:
mov edx,len
mov ecx,msg
mov ebx,1
mov eax,4
int 0x80

mov eax,1
int 0x80

  section .data
  msg db 'hello World!' , 0xa
  len equ $ -msg

       
Step 4: To compile the program write "nasm -f elf64 hello.asm" .
            ->Here "hello.asm" is the file name so don't get confused.
            ->If your system is 32 bit then you should use "nasm -f elf32 hello.asm"
            ->If your system is 64 bit then you should use "nasm -f elf64 hello.asm"

Step 5: After you will compile your code you will get a object file as "hello.o".

Step 6: To execute the "hello.o" file write the command "ld hello.o -o hello".

After executing the "hello.o" file you will get one more executable file as "hello".

Step 7: To Run the file just type ./hello and press Enter you will get your output.

So here you successfully installed and compiled your Assembly program.