skill man page on Slackware

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SKILL(1)		      Linux User's Manual		      SKILL(1)

NAME
       skill, snice - send a signal or report process status

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

DESCRIPTION
       These tools are probably obsolete and unportable. The command syntax is
       poorly defined. Consider using the killall, pkill, and  pgrep  commands
       instead.

       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 ...)  Priority  numbers
       range  from  +20 (slowest) to -20 (fastest).  Negative priority numbers
       are restricted to administrative users.

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

PROCESS SELECTION OPTIONS
       Selection criteria can be: terminal, user, pid, command.	  The  options
       below  may  be  used  to	 ensure	 correct interpretation.  Do not blame
       Albert for this interesting interface.

       -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 argument is a command name.

SIGNALS
       The signals listed below may be available for  use  with	 skill.	  When
       known, numbers and default behavior are shown.

       Name	Num   Action	Description

       ()									   ()

       0	  0   n/a	exit code indicates if a signal may be sent
       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
       Command			   Description
       snice seti crack +7	   Slow down seti and crack
       skill -KILL -v /dev/pts/*   Kill users on new-style PTY devices
       skill -STOP viro lm davem   Stop 3 users
       snice -17 root bash	   Give priority to root's shell

SEE ALSO
       killall(1) pkill(1) kill(1) renice(1) nice(1) signal(7) kill(2)

STANDARDS
       No standards apply.

AUTHOR
       Albert Cahalan <albert@users.sf.net> wrote skill and snice in 1999 as a
       replacement for a non-free version, and is the  current	maintainer  of
       the  procps  collection.	 Please	 send  bug  reports  to	 <procps-feed‐
       back@lists.sf.net>.

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