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KILLALL(1)                       User Commands                      KILLALL(1)



NAME
       killall - kill processes by name

SYNOPSIS
       killall [-Z,--context pattern] [-e,--exact] [-g,--process-group] [-i,--interactive] [-q,--quiet] [-r,--regexp]
       [-s,--signal signal] [-u,--user user] [-v,--verbose] [-w,--wait] [-I,--ignore-case] [-V,--version] [--] name
       ...
       killall -l
       killall -V,--version

DESCRIPTION
       killall  sends a signal to all processes running any of the specified commands. If no signal name is specified,
       SIGTERM is sent.

       Signals can be specified either by name (e.g. -HUP or -SIGHUP ) or by number (e.g. -1) or by option -s.

       If the command name is not regular expression (option -r) and contains a slash (/),  processes  executing  that
       particular file will be selected for killing, independent of their name.

       killall  returns a zero return code if at least one process has been killed for each listed command, or no com-
       mands were listed and at least one process matched the -u and -Z search criteria. killall returns non-zero oth-
       erwise.

       A killall process never kills itself (but may kill other killall processes).

OPTIONS
       -e, --exact
              Require  an  exact  match  for very long names. If a command name is longer than 15 characters, the full
              name may be unavailable (i.e. it is swapped out). In  this  case,  killall  will  kill  everything  that
              matches within the first 15 characters. With -e, such entries are skipped.  killall prints a message for
              each skipped entry if -v is specified in addition to -e,

       -I, --ignore-case
              Do case insensitive process name match.

       -g, --process-group
              Kill the process group to which the process belongs. The kill signal is only sent once per  group,  even
              if multiple processes belonging to the same process group were found.

       -i, --interactive
              Interactively ask for confirmation before killing.

       -l, --list
              List all known signal names.

       -q, --quiet
              Do not complain if no processes were killed.

       -r, --regexp
              Interpret process name pattern as an extended regular expression.

       -s, --signal
              Send this signal instead of SIGTERM.

       -u, --user
              Kill only processes the specified user owns. Command names are optional.

       -v, --verbose
              Report if the signal was successfully sent.

       -V, --version
              Display version information.

       -w, --wait
              Wait  for  all  killed  processes  to die. killall checks once per second if any of the killed processes
              still exist and only returns if none are left.  Note that killall may wait forever  if  the  signal  was
              ignored, had no effect, or if the process stays in zombie state.

       -Z, --context
              (SELinux  Only)  Specify  security  context: kill only processes having security context that match with
              given expended regular expression pattern. Must precede other arguments on  the  command  line.  Command
              names are optional.

FILES
       /proc     location of the proc file system

KNOWN BUGS
       Killing  by  file only works for executables that are kept open during execution, i.e. impure executables can't
       be killed this way.

       Be warned that typing killall name may not have the desired effect on non-Linux systems, especially  when  done
       by a privileged user.

       killall  -w  doesn't  detect if a process disappears and is replaced by a new process with the same PID between
       scans.

       If processes change their name, killall may not be able to match them correctly.

AUTHORS
       Werner Almesberger <wernerATalmesberger.net> wrote the original version of psmisc. Since version 20 Craig  Small
       <csmallATsmall.au> can be blamed.

SEE ALSO
       kill(1), fuser(1), pgrep(1), pidof(1), pkill(1), ps(1), kill(2).



Linux                             2007-08-09                        KILLALL(1)