hup(1)                                                           hup(1)

  hup

  NAME

    hup - execute command pending hang-up signal

  SYNOPSIS

    hup [command]

  DESCRIPTION

    This command is a C-shell built-in command.

    With command, hup(1) runs command so that it will exit on a hang-up signal
    and arranges for the shell to send it a hang-up signal when the shell
    exits. Note, however, that commands can set their own response to hangups,
    overriding hup. Without an argument (allowed only in a shell script),
    hup(1) causes the shell to exit on a hangup for the remainder of the
    script. (See also Signal Handling in tcsh(1) and the nohup(1) built-in
    command.)