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Hello everyone, in this lesson we will take a look at the basic operating commands of the Linux system

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Graphics memory test software is running in Linux system,

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so we need to be able to use the most basic operating commands of Linux

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The first one is ls

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It is a command to view the current directory,

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that is, to view what files are under the current directory

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Let's try this command

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I am now under the home folder

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If I want to know what files are in the home folder, I need to use the ls command

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Type ls and press enter

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You can see that it has printed all the files under the home folder

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Second, the cd command

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The cd command is the command to switch directories

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For example, I am now under the home directory,

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and if I want to go to the directory 455.127, I need to use the cd command

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Enter cd, space, 455.127, enter

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At this time, I will enter the 455.127 directory

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cd can also return to the parent directory, just enter cd ..

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Let's try

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My current location is the 455.127 directory under home

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I want to go back to the home directory.

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At this time, enter cd .. to go back to the home directory

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If I want to go back to the root directory from the home directory, then I type cd ..

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At this time, it returns to the root directory

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We can also enter the path to go to a directory

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For example, I want to go to 455.127 under the home directory under the root directory,

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then I only need to enter cd home 455.127

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Let's look at the next command, the delete command

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This command is not recommended for everyone to use

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We don't need to delete any files to operate this software, so don't use this rm command

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Restart command

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Just press Ctrl+Alt+delete to reboot directly

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Shutdown command, poweroff

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Enter this command to shut down directly

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There is also a very commonly used function key, the TAB key

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This key can be auto-completed

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What is auto-completion?

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For example, I am now under the root directory, and I want to go to the home folder under the root directory

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At this time, I only need to enter cd, enter an h,

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and press the TAB key, it will automatically complete home for me

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It should be noted that when there is one and only one option, it can be automatically completed

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For example, I am now under the home directory, there are many directories below

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If I want to enter the 455.127 directory, enter cd 455

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At this time, I press the TAB key, it will not give me automatic completion

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Because these all start with 455, it does not know which one to fill

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It must be filled until there is one and only one, then it can be automatically completed

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For example, if I want to enter 455.120_3080, then I will enter 455.120, press the TAB key,

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and it will automatically complete _3080

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In actual use, the three most used keys are ls, cd and TAB

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The above is the most basic operation command of Linux