$ARG

NAME

NAME

$^F The maximum system file descriptor, ordinarily 2. System file descriptors are passed to

NAME

NAME

msgrcv ID,VAR,SIZE,TYPE,FLAGS Calls the System V IPC function msgrcv to receive a message from message queue ID into variable VAR with a maximum

NAME

while These flow-control keywords are documented in Compound

waitpid PID,FLAGS Waits for a particular child process to terminate and returns the pid of the deceased process, or