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The head command can be used to view the beginning part of the file content, and it has a commonly used parameter -n Used to display line numbers, the default is 10That is, display 10 The content of the line.
Command Format:
head [parameters] [files]
Parameters:
-q Hides the filename
-v Displays the filename
-c<number of bytes> Displays the number of bytes.
-n<line number> Displays the number of lines.
Example
To display w3The beginning of the codebox_notes.log file 10 Enter the following command to display
head w3codebox_notes.log
Display the beginning of the notes.log file 5 Enter the following command to display
head -n 5 w3codebox_notes.log
Display the beginning of the file 20 Bytes:
head -c 20 w3codebox_notes.log