TIMEOUT(1) User Commands TIMEOUT(1)
timeout - run a command with a time limit
timeout [OPTION] DURATION COMMAND [ARG]...
Start COMMAND, and kill it if still running after DURATION.
Mandatory arguments to long options are mandatory for short options
exit with the same status as COMMAND, even when the
command times out
when not running timeout directly from a shell prompt,
allow COMMAND to read from the TTY and get TTY signals; in this
mode, children of COMMAND will not be timed out
also send a KILL signal if COMMAND is still running
this long after the initial signal was sent
specify the signal to be sent on timeout;
SIGNAL may be a name like 'HUP' or a number; see 'kill -l' for a
list of signals
display this help and exit
output version information and exit
DURATION is a floating point number with an optional suffix: 's' for
seconds (the default), 'm' for minutes, 'h' for hours or 'd' for days.
If the command times out, and --preserve-status is not set, then exit
with status 124. Otherwise, exit with the status of COMMAND. If no
signal is specified, send the TERM signal upon timeout. The TERM sig-
nal kills any process that does not block or catch that signal. It may
be necessary to use the KILL (9) signal, since this signal cannot be
caught, in which case the exit status is 128+9 rather than 124.
Some platforms don't currently support timeouts beyond the year 2038.
Written by Padraig Brady.
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report timeout translation bugs to <http://translationpro-
Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU
GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Full documentation at: <http://www.gnu.org/software/coreutils/timeout>
or available locally via: info '(coreutils) timeout invocation'
GNU coreutils 8.28 January 2018 TIMEOUT(1)
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