Linux Beginners Command graphic commentary: Tar

Features: Mainly archiving and reconciliation functions. Common parameters:-c-v-f-z-x tip: tar [Main and auxiliary options] file or directory. Examples of the Gege Hao Ren these several files are archived in 1.tar 1.tar this file solution.

Linux Beginners Command graphic interpretation: Cat

Function: Displays a file on the screen, connecting two or more files. Common parameter hints: Cat file name example cat connection two or more files

Linux Beginners Command Graphic interpretation: more

Features: Same as cat commands. The difference is that a number of rows are displayed and then paused. Common parameter hints more filename example

Graphical Linux command: Verifying files with the file command

The use of the file command is simple. Format: File < path > < filename >. Now the terminal returns the message that this is a text file. However, this command supports a variety of files, and now look at what information the executable returns. Wow! This time the information is very detailed AH. Said to be a 32-bit executable file. Support for processor Intel 80386. Linux kernel version 2.2.5 required. is a program with a graphical interface Oh! Now let's see what information the picture file returns ...

Linux Beginners Command graphic interpretation: rename

Function: collectively renamed. Commonly used parameter hint rehttp://www.aliyun.com/zixun/aggregation/11696.html ">name to change those letters to those letters to change the file example example

Diagram Linux command: Kill process with kill command

The KILL command is simple to use. The format is: Kill < process PID number, let's try it. First, use the top command to see what programs are running now. To learn more about the top command, search for: Display the system process with the top command. The PID number of the "top" command that was currently running is 3876. Let's just kill 3876. We click on the end window to position the red line. Creates a new session. In a new session, enter: Kill 3876. ...

Linux Beginners Command graphic interpretation: RmDir

Function: Deletes a directory. Common Parameters-P hint: rmdir [parameters] Deleted directory Example-p deletes all directories on the specified directory.

Graphical Linux command: Creating a group with the Groupadd command

The Groupadd command is used to create user groups on a Linux system. This allows users to get the permissions they have in their group by assigning different permissions to different groups of users and then adding different users to different groups as needed. This approach is handy when there are many users in Linux. The Groupadd command is simple to use, simply enter the user group name after the command. Please try typing in the terminal: Groupadd hello. At this point, we have created a user group called "Hello". For the ...

Linux Beginners Command graphic interpretation: mkdir

Features: Create a directory of commonly used parameters:-P-M hint: mkdir [parameters] created directory example-p when creating a new directory, when its parent directory does not exist, first create the parent directory-M to create a new directory while specifying its permissions

Graphical Linux commands: directing to a directory with a CD command

Maybe my friends remember that in the Dos era we used a lot of commands to get the job done. After entering the Windows age, because of the computer's ease of use greatly enhanced, users have gradually forgotten the command. Nevertheless, "command" still has an important place in the computer field. Friends may ask: "Computers have been using a graphical interface for so many years, what is the order today?" "Yes, the average user is getting away from the order." This is the original intention of inventing the graphical interface: simplifying the operation. But computer hardware and software, like any other product, will fail. Then after the failure ...

Linux Beginners Command Graphic interpretation: RM

Function: Delete command. Commonly used parameters-i-f-r hint: RM [parameters] to http://www.aliyun.com/zixun/aggregation/18137.html "> Delete files or directory example-i delete files need to confirm-F Delete files do not need to confirm- R deletes the specified directory and its subdirectories, and all files included

Graphical Linux commands: Creating users with Useradd or AddUser commands

Create a user with the "Useradd" or "adduser" command using the shell command "Useradd" and "AddUser" are the same.   We'll use the Useradd command to demonstrate how to create a new user. The use of this is the case. Because a user in a Linux system must belong to a group, if you create a new user without specifying a group command, you create a group with exactly the same name as the user and put the new user in. If you specify a group when you create a new user, the user ...

Linux Beginners Command Graphics and text commentary: MV

Function: The command to move a directory or file. Another feature is to modify the file or directory name. Commonly used parameters:-I-F hint mv [parameter] source file or directory destination file or directory example-I move need to confirm-F overwrite before never prompt

Diagram Linux command: Clean terminal with clear command

The following figure is just using a graphical mplayer playback from the VCD disc on the copy down. DAT files after the screen. I want to do other work now, but it's a mess, isn't it? Please enter the clear command at the terminal prompt. And then press ENTER to see what happens to the terminal screen? The terminal has become clean. But is the prompt still stuck in the directory where you just worked?

Linux Beginner command Graphics and text commentary: LN

Function: Link command to assign another name to the file already on the system. Common parameters-s-f hint ln [parameter] source file example-D hard link-s symbolic link

Graphical Linux commands: displaying monthly calendars and calendars with CAL commands

The CAL command is used to display a monthly calendar or almanac, so let's take a look at what is displayed directly in the terminal by typing the CAL command. With the left mouse button click "Start"--> "Application"--> "Attachment"--> "System Terminal", open the terminal. We enter a CAL in the terminal. It shows the calendar for the current month of the system. What if we want to show the system this year's Almanac? Let's try the CAL plus year number 2006 and see what it shows? Originally is this year's Almanac! Now there are no friends to ...

Linux Beginners Command graphic interpretation: CP

1 function: Copy files and directories from one directory to another directory. 2 Common parameters:-i-f-r 3 prompt: CP [parameter] source file or directory-I when the target file exists. system prompts to copy-F target file exists without prompting direct copy-R copy of this directory and all files and subdirectories in the directory

Graphical Linux command: Viewing a disk partition with the DF command

For a computer user, you store, move, and delete files on disk day after day. Of course you care about disk space usage. There is a Shell in Linux that allows users to have a clear picture of how disk space is being used anytime, anywhere. It is the "DF" command. We tried to enter DF in the terminal to see what it would show. Gosh, there's a lot of stuff. But those numbers are so long, do I have to spend a lot of time trying to figure out how much space the disk has? Perhaps DF's lifeline-H parameter can help you. We try to be in the terminal ...

Linux Beginners Command graphic interpretation: LS

1 function: Lists the contents of the specified directory. 2 summary: LS [parameters] [file or directory] 3 common parameters:-l-a-d-i 4 Example-L displays the details under the directory. -a displays all files and directories. -D Displays the directory like a file. Files in the directory are not displayed. -I displays directories and files occupied by the I-node-i-node number

Graphical Linux commands: Displaying system processes with the top command

What is a process? Simply put, the system is running the program. What if we want to know which programs are running in the current system? It's easy to use the top command to get what you want. We enter in the terminal: top, see what is displayed? Wow, so many programs are running in the system (each line represents a program)?   What do the above columns mean? The pid:pid is the number that the system is assigned to per program, or process itself. Because the system has to track it after the program is started, why? Because at least we have to find it.

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