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SYSCTL(8)							     SYSCTL(8)

NAME
       sysctl -	configure kernel parameters at runtime

SYNOPSIS
       sysctl [-n] [-e]	variable ...
       sysctl [-n] [-e]	[-q] -w	variable=value ...
       sysctl [-n] [-e]	[-q] -p	<filename>
       sysctl [-n] [-e]	-a
       sysctl [-n] [-e]	-A

DESCRIPTION
       sysctl  is used to modify kernel	parameters at runtime.	The parameters
       available are those listed under	/proc/sys/.  Procfs  is	 required  for
       sysctl(8)  support  in  Linux.	You can	use sysctl(8) to both read and
       write sysctl data.

PARAMETERS
       variable
	      The name of a key	to read	from.  An  example  is	kernel.ostype.
	      The '/' separator	is also	accepted in place of a '.'.

       variable=value
	      To set a key, use	the form variable=value, where variable	is the
	      key and value is the value to set	it to.	If the value  contains
	      quotes or	characters which are parsed by the shell, you may need
	      to enclose the value in double quotes.   This  requires  the  -w
	      parameter	to use.

       -n     Use  this	option to disable printing of the key name when	print-
	      ing values.

       -e     Use this option to ignore	errors about unknown keys.

       -N     Use this option to only print the	names. It may be  useful  with
	      shells that have programmable completion.

       -q     Use this option to not display the values	set to stdout.

       -w     Use this option when you want to change a	sysctl setting.

       -p     Load   in	  sysctl   settings   from   the   file	 specified  or
	      /etc/sysctl.conf if none given.  Specifying - as filename	 means
	      reading data from	standard input.

       -a     Display all values currently available.

       -A     Display all values currently available in	table form.

EXAMPLES
       /sbin/sysctl -a

       /sbin/sysctl -n kernel.hostname

       /sbin/sysctl -w kernel.domainname="example.com"

       /sbin/sysctl -p /etc/sysctl.conf

FILES
       /proc/sys /etc/sysctl.conf

SEE ALSO
       sysctl.conf(5)

BUGS
       The -A parameter	behaves	just as	-a does.

AUTHOR
       George Staikos, <staikos@0wned.org>

				  21 Sep 1999			     SYSCTL(8)

NAME | SYNOPSIS | DESCRIPTION | PARAMETERS | EXAMPLES | FILES | SEE ALSO | BUGS | AUTHOR

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