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This article introduces the relevant knowledge of "how to view the contents of files in Linux". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Cat displays the contents of the file from the first line

Tac displays from the last line, and you can see that tac is written backwards for cat!

When nl is displayed, output the line number by the way!

More displays the contents of the file page by page

Less is similar to more, but even better than more, it can turn the page forward!

Head only looks at the first few lines

Tail only looks at a few lines of tail.

Od reads the contents of the file in a binary way!

Cat views the contents of the file

Cat file_name

Show line number

Cat-n file_name

Tac file content flashback display

You can compare the contents of the cat above below. Tac outputs the contents of the file in reverse.

Nl displays the number of lines

The nl command is the same as cat-n file_name;, which is used to display line numbers.

More can turn the page to display

For testing, add more code

Then press enter to view the rest of the code.

Parameters:

Space: represents turning down one page

Enter: turn down one line

Q: leave more directly for viewing

B: turn back the page

The function of less page flip pen more can fully point the parameters:

[pagedown]: turn a page down

[pageup]: turn a page up

/ string: the function of searching down for "string"

? String: the function of searching up for "string"

N: repeat the previous search (and / or? It's about! )

N: reverse repetition of the previous search (and / or? It's about! )

Q: exit less file_name

Head data interception

Tail takes out the next few lines

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