how to clear screen

(1) Orderls--Listing filesLS Displays the current directory fileLs-la gives a long list of all the files in the current directory, including hidden "files that start with a period"LS A * lists all files in the current directory that begin with the

Many of the operations in Ubuntu are very fast in the terminal (Terminal), remembering that some shortcuts are more handy to operate. The shortcut key to open the terminal in Ubuntu is Ctrl+Alt+T . Some of the other common shortcut keys are as

Ctrl-a equivalent to the home key for positioning the cursor to the front of the bankCTRL-E equivalent to end key, moving cursor to end of bankCtrl-b corresponds to the left ARROW key to move the cursor one cell to the leftCtrl-f equals right ARROW

we learned more about viewing the Find help command in the previous section, looking in the class command Which,find It's something we have to master. View class Commands Cat,head,tail is something I have to master, as for the help command we know

1.vimdiff[Email protected] ~]# Vimdiff a.txt b.txt2 files to edit-This is a text |~                          | ~~                          | ~A.txt B.txt All"B.txt" 1L, 15C-This is a text |2.stat[Email protected] ~]# stat a.txtFile: ' A.txt 'Size:15

Original address: http://www.eguidedog.net/doc/Ubuntu12.04shortcuts.html 　　 Ubuntu 12.04 Common shortcut keys ===== Desktop =====alt + F1: Focus on the left side of the desktop task navigation bar, you can press the up and down keys navigation. ALT +

"Frequently used shortcut keys":TAB Completion commandCTRL + a jump to the command line startCtrl+e jump to the end of the command lineCTRL +D exit session, equivalent to exit or logoutCtrl +l Clear ScreenCTRL + U clears the contents before the cut

EHCO command: Display a line of text"Feature" will print out the content by default, which is most commonly used in the shell.Syntaxecho option argument"Common options"-E activates escape characters\b: Delete the previous character \c: End with a

Guide When you log on to a Linux server in order to solve a performance problem: What should you check in the first minute? By running the following 10 commands, you can get a rough idea of the processes and resource usage that the

CTRL + C ends a running program Ctrl+d end input or exit shell Ctrl+s Pause Screen Output "Lock terminal" Ctrl+q restore screen output "unlock terminal" Ctrl+l clear screen, "lowercase letter L"

Linux System Quick Start1 Linux Introduction:1) Linux is a free-to-use and free-spread UNIX-like operating system, a multi-user, multi-tasking, multi-threaded and multi-CPU operating system. The core of Linux comes from UNIX, so it can run major

Directory Operations command name function Description Examples of Use Mkdir Create a Directory mkdir dirname RmDir Delete a directory RmDir dirname

Linux Terminal type:/dev/console: Physical Terminal/dev/tty#: Virtual Terminal/dev/ttys#: Serial Terminal/dev/pts/#: Pseudo TerminalSwitching terminals:CTRL+ALT+F[1-6]: Switch terminalCTRL+ALT+F1: Switch to the graphical interfaceCHVT #: Switch to #

First, the use of the echo commandDescription: Echo will send the input string to standard output. The output strings are separated by white space characters, and a newline number is added at the end.Function: Display charactersSyntax: Echo [-nee]

I. Linux Philosophical thinking1. All Documents2. A small program consisting of a single purpose, combined with a small program to complete complex tasks3. Avoid interaction with the user (avoid graphical interface, the GUI is more prone to bug,

Executes the original command, not the alias, in three ways, such as:' ls '\ls/usr/bin/lsYum Install Bash-completionCp/usr/share/bash-completion/bash_completion/etcVIM/ETC/BASHRC addif [-f/etc/bash_completion]; Then. /etc/bash_completion

First, understand the computer hardware components:Von. Neumann architecture defines the computer has the arithmetic, the controller, the memory, the input device, the output device five major parts, also has one principle is: must be the binary

echo display with color, need to use parameter-EThe format is as follows:Echo-e "\033[word background color; text color m string \033[0m"For example:Echo-e "\033[41;37m Tonyzhang \033[0m"Where 41 of the position represents the background, 37 of the

Ancient artifact, presumably we will associate to the XX TV drama, the ancient artifact is not Donghuang clock, shaft sword, Pangu, refining demon pot, Hao Tian Tower, Fuxi Qin, Shennong Ding, Kong Tong Printing, Kunlun Mirror, nu wa stone. It is

ls command: Ls-1: Displays the files in this directory in one line Ls-a: Show hidden files LS/: View something under the root path Ls-r/: Recursively view all content under the root path Ls-s: Display size Ls-alsh: Show