format ELF executable 3
entry start
start:
mov edx,len ; arg3, length of string to print
mov ecx,msg ; arg2, pointer to string
mov ebx,1 ; arg1, where to write, screen
mov eax,4 ; write command to int 80 hex
int 0x80 ; interrupt 80 hex, call kernel

mov ebx,0 ; exit code, 0=normal
mov eax,1 ; exit command to kernel
int 0x80 ; interrupt 80 hex, call kernel
msg db 'Hello world!',0xA
len = $-msg

compile hello file show Not enough permissions !
set chomd 775 hello
show hello world!

Can you tell me the problem how to solve?