Linux from Getting started to mastering (i) (creating files, viewing files)

1. Create File command: Touch

• To create a file:

• Create a file with spaces: Just wrap the file name with "".

2. View file Contents command: Cat

• View File: Cat file name
• View the file and display the line number: cat-n filename, where n means

3. Reverse View File Contents command: TAC (cat in turn)

Such as:

Cat command:

TAC Command:

Content opposite display

4. If the file has more content, you need to use the command: more

Next you can use:

• Space or F to page through
• Use Enter to view the line in a row
• Use Q to exit when you are finished viewing

5. When you flip the page down with the more command, use the command: less

• Space or F to page through
• Use Enter to view the line in a row
• If you turn over, you can use PageUp to turn up.
• Press the UP ARROW line to go up
• You can also search by pressing ENTER by/service (/keyword), and after you press ENTER, the results of the search are highlighted, and you can press N to go down (n = next)

6. View the first few lines of the file, command: Head

• Head-n Service: View the first 20 rows of data in the service file
• Head Service: View the first 10 rows of data for the service file by default

7. View the following lines of the file, command: Tail

• Tail-n Service: View the following 20 rows of data in the service file
• Tail Service: View the following 10 rows of data from the service file by default
• TAIL-F: Dynamically display the content at the end of a file
  • To view dynamic logs:

8. Bind a virtual network card for the Linux system's network card operation as follows:

　　

Linux from Getting started to mastering (i) (creating files, viewing files)