Linux shortcut keys and System administration commands (1)

Shortcut keys:

Ctrl+u: Quickly delete all character contents before the cursor.

Ctrl+k: Quickly removes all character content from the current cursor to the end of the line.

Ctrl+l: Quickly clears the contents of the current screen and displays the command prompt only in the upper-left corner.

CTRL + C: Cancels the editing of the current command line and switches to a new line of command prompt.

"\": If the input line of the command is too long, the terminal wraps itself. (Force line wrapping)

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Command:

Uname-r//View the Linux kernel version information currently in use.

Cat/proc/cpuinfo//View the current host's CPU model.

Cat/proc/meminfo//View memory information for the current host.

Hostname//temporarily modify host name.

Vi/etc/sysconfig/network//permanently modifies host name.

Ifconfig//View all network card information.

Ifconfig EthX//View the information of the single-block network card on the host, x=0,1,2 ... respectively, the first, two, three ... The information for the block NIC.

Ifconfig (eth0: Modify which NIC to follow which, only one can be omitted) x.x.x.x/y (M.M.M.M)//modify IP information; x:ip address, Y: Mask length, M: mask. such as =225.225.255.0

Shutdown-h now or Poweroff or init 0//shutdown operation.

Shutdown-r now or reboot or init 6//restart operation.

Shutdown-r +15 ' The system would be rebboted!! '//Send a notification to each user who is currently logged on to the Linux host ' the system would be rebboted ', and reboot after a delay of 15 minutes.

Help pwd: Check the shell's internal command for the PWD information.

--help: Used to display help information such as format and options for the corresponding command word.

PWD: Displays the directory where you are currently located.

This article is from the "Darker Notes" blog, so be sure to keep this source http://1286324609.blog.51cto.com/9453694/1597010

Linux shortcut keys and System administration commands (1)