Anonymous

section .data
        filename: db 'testdir',0 ;name of the new dir
	string: db 'Hello',0 ;string to write to file..
	stringLen: equ $-string ;length of string
	textfile: db 'hello.txt',0;textfile to write string to..

section .text
        global _start

_start:
        ;Creating directory..
	mov eax, 39 ;mkdir sys-call
        mov ebx, filename ;copy filename into first arg of mkdir syscall
        mov ecx, 00644Q ;rw_rw_rw in octal

        int 80h ;call the kernel..

	;cd to the created dir..
	;ebx still contains the filename
	mov eax, 12 ;chdir syscall
	int 80h ;now inside the create dir

	;Create a file
	;ecx still contains the perms in octal
	mov eax, 8
	mov ebx, textfile;
	int 80h


	;Write 'string' to textfile

	test eax,eax ;test if fd is valid
	js skipWrite ;if not, exit the program..

	mov ebx, eax ;eax returned a fd, copy it into ebx
	mov eax, 4 ;syswrite
	mov ecx, string
	mov edx, stringLen
	int 80h

	;close file
	mov eax, 6
	int 80h

	; Exit the prog..
        mov eax, 1;
        mov ebx, 0;

        int 80h;

skipWrite:
	mov eax,1
	mov ebx, 0
	int 80h