killall - phpMan

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KILLALL(1)                       User Commands                      KILLALL(1)

       killall - kill processes by name

       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

       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 commands were listed and at least one process matched the  -u
       and -Z search criteria. killall returns non-zero otherwise.

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

       -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  pro-
              cess 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 pre-
              cede other arguments on the command line. Command names are optional.

       /proc     location of the proc file system

       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.

       Werner  Almesberger  <werner AT> wrote the original version of psmisc.
       Since version 20 Craig Small <csmall AT> can be blamed.

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

Linux                             2007-08-09                        KILLALL(1)

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