SKILL(L)               Linux User's Manual               SKILL(L)



NAME
       skill, snice - report process status


SYNOPSIS
       skill [signal to send] [options] process selection criteria
       snice [new priority] [options] process selection criteria


DESCRIPTION
       The default signal for skill is TERM. Use -l or -L to list
       available signals.  Particularly  useful  signals  include
       HUP,  INT, KILL, STOP, CONT, and 0.  Alternate signals may
       be specified in three ways: -9 -SIGKILL -KILL.

       The default priority for snice is +4. (snice +4 ...)  Pri-
       ority  numbers  range from +20 (slowest) to -20 (fastest).
       Negative priority numbers are restricted to administrative
       users.


GENERAL OPTIONS
       l  l  l.   -f   fast  mode This  is  not currently useful.
       -i   interactive use T{ You will be asked to approve  each
       action.   T}  -v   verbose  output T{  Display information
       about    selected     processes.      T}     -w   warnings
       enabled    This   is   not   currently   useful.   -n   no
       action This only displays the process ID.


PROCESS SELECTION OPTIONS
       Selection criteria can be: terminal, user,  pid,  command.
       The  options below may be used to ensure correct interpre-
       tation.  l l.  -t   The next argument is a  terminal  (tty
       or  pty).  -u   The next argument is a username.  -p   The
       next argument is a process ID number.  -c   The next argu-
       ment is a command name.


SIGNALS
       The  signals  listed  below  may be available for use with
       skill.  When  known,  numbers  and  default  behavior  are
       shown.      lB     rB     lB    lB    lfCW    r    l    l.
()                                                             ()



       Name Num  Action    Description             ALRM 14   exit
       HUP  1    exit  INT  2    exit  KILL 9    exit this signal
       may   not   be   blocked   PIPE 13   exit   POLL      exit
       PROF      exit        TERM 15   exit        USR1      exit
       USR2      exit VTALRM         exit STKFLT         exit may
       not  be  implemented  PWR       ignore    may exit on some
       systems       WINCH          ignore       CHLD      ignore
       URG       ignore   TSTP      stop may  interact  with  the
       shell   TTIN      stop may   interact   with   the   shell
       TTOU      stop may     interact     with     the     shell
       STOP      stop this   signal   may    not    be    blocked
       CONT      restart   continue  if stopped, otherwise ignore
       ABRT 6    core        FPE  8    core        ILL  4    core
       QUIT 3    core        SEGV 11   core        TRAP 5    core
       SYS       core may not be  implemented  EMT       core may
       not  be  implemented  BUS       core core  dump  may  fail
       XCPU      core core dump may fail XFSZ      core core dump
       may fail


EXAMPLES
       lB  lB lfCW l.  Command   Description snice netscape crack
       +7  Slow  down  netscape  and   crack   skill   -KILL   -v
       /dev/pts/*     Kill  users  on new-style PTY devices skill
       -STOP torvalds davem tytso  Stop 3 users  snice  -17  root
       bash Give priority to root's shell


SEE ALSO
       top(p) kill(l) renice(e) nice(e)


STANDARDS
       No standards apply.


AUTHOR
       Albert Cahalan <acahalan@cs.uml.edu> wrote skill and snice
       in 1999 as a replacement for a non-free  version.  Michael
       K. Johnson <johnsonm@redhat.com> is the current maintainer
       of the procps collection.

       Please send bug reports to <acahalan@cs.uml.edu>



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