Linux man pages

Section (1) timeout

Linux manual pages	Section 1

Name

timeout — run a command with a time limit

Synopsis

timeout [OPTION] DURATION COMMAND [ARG...]

timeout [OPTION]

DESCRIPTION

Start COMMAND, and kill it if still running after DURATION.

Mandatory arguments to long options are mandatory for short options too.

−−preserve−status

exit with the same status as COMMAND, even when the
command times out

−−foreground
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

−k, −−kill−after=DURATION/
also send a KILL signal if COMMAND is still running
this long after the initial signal was sent

−s, −−signal=SIGNAL/
specify the signal to be sent on timeout;
SIGNAL may be a name like _zsingle_quotesz_HUP_zsingle_quotesz_ or a number; see _zsingle_quotesz_kill −l_zsingle_quotesz_ for a list of signals

−v, −−verbose

diagnose to stderr any signal sent upon timeout

−−help

display this help and exit

−−version

output version information and exit

DURATION is a floating point number with an optional suffix: _zsingle_quotesz_s_zsingle_quotesz_ for seconds (the default), _zsingle_quotesz_m_zsingle_quotesz_ for minutes, _zsingle_quotesz_h_zsingle_quotesz_ for hours or _zsingle_quotesz_d_zsingle_quotesz_ for days. A duration of 0 disables the associated timeout.

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 signal 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.

BUGS

Some platforms don_zsingle_quotesz_t currently support timeouts beyond the year 2038.

AUTHOR

Written by Padraig Brady.

REPORTING BUGS

GNU coreutils online help: <https://www.gnu.org/software/coreutils/>

Report any translation bugs to <https://translationproject.org/team/>