Linux file content View __linux

1, directly view all the content of the article: Cat, TAC, NL

(1) Cat: File output from the first line to the last row

(2) TAC: Writing is the reverse of cat, output is also from the last line to the first line

(3) NL: Similar to cat commands, but with line numbers

2, page production to see the content of the article: more, less

(1) The use of more

percentage of the last line showing the content of the article

SPACEBAR: Next page
Enter: down one line
\ character: Find one of the currently displayed characters
: F: Display the code that has been displayed
Q: Exit
B: Page back

(2) The use of less: and more the difference is that you can use PageDown: Page DOWN, pageup page up

3: Data interception: Head, tail

(1) head use: Head-n row number file name, remove the contents of the specified line from scratch

(2) Tail usage: tail-n row number file name, take out the contents of the following n rows

Think 1: Take out 11 lines to 20 lines of content

First take the first 20 lines of content, after the pipe out of 10 lines