Key Terms and Concepts

_exit system call

atexit system call

daemon

exec

execl library function

execle function call

execlp library function

execv library function

execve system call

execvp library function

exit code

exit library function

flush

rand library function

restricted shell

rusage structure

srand library function

status information

strstr library function

strtok library function

wait system call

wait3 library function

wait4 library function

waitpid system call

WEXITSTATUS macro

WIFEXITED macro

WIFSIGNALED macro

WIFSTOPPED macro

wstat macros

WSTOPSIG macro

WTERMSIG macro

zombie