kill/kill.1

   1 .\"     $NetBSD: kill.1,v 1.10 1997/10/20 08:52:10 enami Exp $
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  37 .\"     @(#)kill.1      8.2 (Berkeley) 4/28/95
  38 .\"
  39 .Dd April 28, 1995
  40 .Dt KILL 1
  41 .Os
  42 .Sh NAME
  43 .Nm kill
  44 .Nd terminate or signal a process
  45 .Sh SYNOPSIS
  46 .Nm
  47 .Op Fl s Ar signal_name
  48 .Ar pid
  49 \&...
  50 .Nm ""
  51 .Fl l
  52 .Op Ar exit_status
  53 .Nm ""
  54 .Fl signal_name
  55 .Ar pid
  56 \&...
  57 .Nm ""
  58 .Fl signal_number
  59 .Ar pid
  60 \&...
  61 .Sh DESCRIPTION
  62 The kill utility sends a signal to the processes specified
  63 by the pid operand(s).
  64 .Pp
  65 Only the super-user may send signals to other users' processes.
  66 .Pp
  67 The options are as follows:
  68 .Pp
  69 .Bl -tag -width Ds
  70 .It Fl s Ar signal_name
  71 A symbolic signal name specifying the signal to be sent instead of the
  72 default
  73 .Dv TERM .
  74 .It Fl l Op Ar exit_status
  75 If no operand is given, list the signal names; otherwise, write
  76 the signal name corresponding to
  77 .Ar exit_status .
  78 .It Fl signal_name
  79 A symbolic signal name specifying the signal to be sent instead of the
  80 default
  81 .Dv TERM .
  82 .It Fl signal_number
  83 A non-negative decimal integer, specifying the signal to be sent instead
  84 of the default
  85 .Dv TERM .
  86 .El
  87 .Pp
  88 The following pids have special meanings:
  89 .Bl -tag -width Ds -compact
  90 .It -1
  91 If superuser, broadcast the signal to all processes; otherwise broadcast
  92 to all processes belonging to the user.
  93 .El
  94 .Pp
  95 Some of the more commonly used signals:
  96 .Bl -tag -width Ds -compact
  97 .It 1
  98 HUP (hang up)
  99 .It 2
 100 INT (interrupt)
 101 .It 3
 102 QUIT (quit)
 103 .It 6
 104 ABRT (abort)
 105 .It 9
 106 KILL (non-catchable, non-ignorable kill)
 107 .It 14
 108 ALRM (alarm clock)
 109 .It 15
 110 TERM (software termination signal)
 111 .El
 112 .Pp
 113 .Nm
 114 is a built-in to
 115 .Xr csh  1  ;
 116 it allows job specifiers of the form ``%...'' as arguments
 117 so process id's are not as often used as
 118 .Nm
 119 arguments.
 120 See
 121 .Xr csh  1
 122 for details.
 123 .Sh SEE ALSO
 124 .Xr csh 1 ,
 125 .Xr ps 1 ,
 126 .Xr kill 2 ,
 127 .Xr sigaction 2
 128 .Sh STANDARDS
 129 The
 130 .Nm
 131 function is expected to be
 132 .St -p1003.2
 133 compatible.
 134 .Sh HISTORY
 135 A
 136 .Nm
 137 command appeared in
 138 .At v6 .
 139 .Sh BUGS
 140 A replacement for the command
 141 .Dq Li kill 0
 142 for
 143 .Xr csh  1
 144 users should be provided.