sysctl.conf(5) [opendarwin man page]

SYSCTL.CONF(5)							   File Formats 						    SYSCTL.CONF(5)

NAME

       sysctl.conf - sysctl preload/configuration file

DESCRIPTION

       sysctl.conf is a simple file containing sysctl values to be read in and set by sysctl.  The syntax is simply as follows:

	      # comment
	      ; comment

	      token = value

       Note  that  blank  lines  are ignored, and whitespace before and after a token or value is ignored, although a value can contain whitespace
       within.	Lines which begin with a # or ; are considered comments and ignored.

EXAMPLE

	      # sysctl.conf sample
	      #
		kernel.domainname = example.com
	      ; this one has a space which will be written to the sysctl!
		kernel.modprobe = /sbin/mod probe

FILES

       /run/sysctl.d/*.conf
       /etc/sysctl.d/*.conf
       /usr/local/lib/sysctl.d/*.conf
       /usr/lib/sysctl.d/*.conf
       /lib/sysctl.d/*.conf
       /etc/sysctl.conf
	      The paths where sysctl preload files usually exist.  See also sysctl option --system.

SEE ALSO

       sysctl(8)

AUTHOR

       George Staikos <staikos@0wned.org>

REPORTING BUGS

       Please send bug reports to <procps@freelists.org>

procps-ng							   January 2012 						    SYSCTL.CONF(5)

SYSCTL(8)																 SYSCTL(8)

NAME

       sysctl - configure kernel parameters at runtime

SYNOPSIS

       sysctl [-n] [-e] variable ...
       sysctl [-n] [-e] -w variable=value ...
       sysctl [-n] [-e] -p <filename>	 (default /etc/sysctl.conf)
       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 param-
	      eter to use.

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

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

       -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.

       -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)