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home | helpINTR(8) System Manager's Manual INTR(8) NAME intr - run a command with interrupts enabled SYNOPSIS intr [-d] [-t seconds] command [arg...] DESCRIPTION Intr executes a command with keyboard interrupts enabled, and standard input, output and error redirected to the terminal or the console. It may also be used for the opposite: to detach a process from the terminal. There are three situations where intr may be used: From a process that has no controlling tty, like the shell running /etc/rc at boot time, from a script that runs in the background, or by the System Administrator to restart a daemon. In the first case intr will use /dev/console as a controlling tty and as standard input, output and error. In the second case intr will use /dev/tty to connect the command to the controlling tty. In the third case the process will be removed from the process group, and will have I/O redirected to /dev/null as input, and /dev/log for output. OPTIONS -d Daemonize a process instead of bringing it to the foreground. Don't forget to use '&' to make the shell not wait for the process, because you won't be able to kill it with the interrupt key. -t seconds Schedule an alarm to kill the process in the given number of seconds. Use it for a process that may wait indefinitely for a service that may not be available. FILES /dev/console Main computer console. /dev/log Message logging device. /dev/tty Name for the controlling tty. SEE ALSO boot(8), tty(4), setsid(2), alarm(2). BUGS Maybe intr -d should fork to daemonize a process, but the author likes it if the process stays in the jobs list of his shell. AUTHOR Kees J. Bot (kjb@cs.vu.nl) INTR(8)
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