timeout(1) — Linux manual page


TIMEOUT(1)                    User Commands                   TIMEOUT(1)

NAME         top

       timeout - run a command with a time limit

SYNOPSIS         top

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

DESCRIPTION         top

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

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


              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

       -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 'HUP' or a number; see 'kill -l'
              for a list of signals

       -v, --verbose
              diagnose to stderr any signal sent upon timeout

       --help 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.  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         top

       Some platforms don't currently support timeouts beyond the year

AUTHOR         top

       Written by Padraig Brady.

REPORTING BUGS         top

       GNU coreutils online help:
       Report any translation bugs to

COPYRIGHT         top

       Copyright © 2020 Free Software Foundation, Inc.  License GPLv3+:
       GNU GPL version 3 or later <https://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.

SEE ALSO         top


       Full documentation
       or available locally via: info '(coreutils) timeout invocation'

COLOPHON         top

       This page is part of the coreutils (basic file, shell and text
       manipulation utilities) project.  Information about the project
       can be found at ⟨http://www.gnu.org/software/coreutils/⟩.  If you
       have a bug report for this manual page, see
       ⟨http://www.gnu.org/software/coreutils/⟩.  This page was obtained
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       ⟨http://ftp.gnu.org/gnu/coreutils/⟩ on 2021-08-27.  If you
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GNU coreutils 8.32             March 2020                     TIMEOUT(1)

Pages that refer to this page: time(7)