【linux系统参数修改命令】

　　linux系统参数修改命令

　　linuxsysctl

　　linux-yvmf:~ # man sysctl

　　Reformatting sysctl（8）， please wait…

　　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 printing

　　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.

　　-a Display all values currently available.

　　-A Display all values currently available in table form.

　　[html]

　　EXAMPLES（示例）

　　/sbin/sysctl -a

　　/sbin/sysctl -n kernel.hostname

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

　　/sbin/sysctl -p /etc/sysctl.conf

　　FILES（命令对应的系统参数文件）

　　/proc/sys /etc/sysctl.conf

【linux系统参数修改命令】

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