帮助手册

帮助手册

在统信服务器操作系统中自带一本联机使用的手册，以供用户在终端上查找。使用man命令可以调阅其中的帮助信息，非常方便和实用。

■命令格式：man [选项] [参数]

■示例：man systemctl

systemct1
SYSTEMCTL(1)
SYSTEMCTL(1)
NAME
systemct1- ontrol the systemd system and service manager
SYNOPSIS
systemct1 [OPTIONS...] COMMAND [UNIT...
DESCRIPTION
systemct1 may be used to introspect and control the state ofthe"ystemd"sytemand service manager.Please refer to systemd(1) fo
an introduction into the basic concepts and functionality this tool manages.
OPTIONS
The following options are understood:
-t,--type=
The argument should be a comma-separated list of unit types such as service and socket.
fone oftheagumetsisa nttype,when listngunits,1imt display to certain unttypes.therwise,units ofal types
will be shown.
As a special case,if one of the arguments is help,a list of allowed values wil1 be printed and the program wil exit.
--state=
he arguentsho1d be a comm-eparated list ofntD,,At.whelistng nts,show onlythosein the
specified states.Use--state=failed to show only failed units.
As a special case,if one of the aguments is help,a list of allowed values wil1 be printed and the program wil exit.
-p,--property=
henhowtj/agepeties wththshow omad,displaytoptiespcifiedintheargument.The
argument should be a coma-separated list ofproperty names,such as "MainPD"Unless specified,al1 known poperties are shown.
If specified moe than nce,allpopeties with the specified names aeshown.hel competion is implemented for property
names
For the manager itself,systemctlshow wi show all available properties, Those properties are documented in systemd-
Manual
page systemctl(1) line1 (press h for help or g to quit)