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, and should be used to terminate a child process after a fork(2) to avoid flushing buffered output twice.

SEE ALSO

fork(2), wait(2)

7th Edition