NAME

exit − terminate process

SYNOPSIS

exit(status)
int status;

_exit(status)
int status;

DESCRIPTION

Exit is the normal means of terminating a process.  Exit closes all the process’s files and notifies the parent process if it is executing a wait. The low-order 8 bits of status are available to the parent process. 

This call can never return. 

The C function exit may cause cleanup actions before the final ‘sys exit’.  The function _exit circumvents all cleanup. 

SEE ALSO

wait(2)

ASSEMBLER

(exit = 1.) 
(status in r0)
sys exit

7th Edition