RH124 Chapter 3 Getting Help in Red Hat Enterprise Linux

Get Help methods

Whatis command shows what it can do (passwd date ls LVs lvcreate) (Whatis database incomplete, using 'makedb ' update )

Command --help Show command How to use (seq-w 1) (passwd) (--help Some can use- h)

Show time in a certain format

Date + "%y-%m-%d%h:%m:%s"

Date + "%F%T"

Date 122101012012 set time

Hwclock-s setting the system clock based on the motherboard hardware time

HWCLOCK-W Setting the motherboard hardware time based on system time

Man (number) command | File does not write numbers by default the first chapter #查看命令用法, you can also view the configuration file usage /keywords A and a up and down find q exit /c6>

man-k keyword query from the Whatis database containing keywords

The pinfo command is the same as man.

/usr/share/doc system comes with documentation, which is a variety of programs to help

The command is unclear and can be used by the web search engine

RH124 Chapter 3 Getting Help in Red Hat Enterprise Linux