top -n 1 | grep _pflogd | cut -c1-5

kill 'top -n 1 | grep _pflogd | cut -c1-5'

# top -n 1 | grep _pflogd | cut -c1-5
 6727
# killall _pflogd
killall: Command not found.
# man killall
man: no entry for killall in the manual.
# 

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 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).

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  zom-
              bie 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 <werner@almesberger.net> wrote the original version of psmisc. Since  version  20  Craig  Small  <csmall@small.drop-
       bear.id.au> can be blamed.

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



Linux                                                             2004-11-09                                                        KILLALL(1)

kill `top | grep _pflogd | cut -c1-5`

$( )