Tips for Shell common commands

1.cd

CD-Back to last catalog

CD returns the current user's home directory

2.mkdir

Mkdir-p Creating a multilevel directory

Eg:mkdir-p Test1/test2/test3

3.find

Find-empty Finding empty Documents

Find-user XXX View all information about user xxx

Find-mtime-1 view files that have been modified within 1 days

Find-mtime +1 view files that were modified 1 days ago

4.du

Du-h Human Vision

Du-s only show Total capacity

5.head

Head-c 2K Display pre-2KB content

Head-n Display the contents of the top N rows

6.wc

Wc-l Statistics File Line

Wc-c Statistics File characters

Wc-w statistics File Words

7.grep

Grep-i ignoring case

Grep-v Inverse Matching

Grep-w matching Words

grep--color Display Color

8.ln

Ln-s Creating a soft connection

LN creates a hard link

9.vim

HLJK corresponds to the upper or lower

GG move cursor to first line of file

G move cursor to end of file

NG moves the cursor to n rows

^ cursor moves to the current line start character

$ cursor moves to the end character of the current line

FX cursor moves to the next X character

FX cursor moves to the first X character

W cursor moves one word to the right

b The cursor moves one word to the left

NW,NB cursor Left/Right move n words

DD deletes the cursor in the row

NDD Delete N rows

d$ Delete cursor to end of line

J Delete line breaks

U Undo Previous Action

Rx replaces the current character of the cursor with the X

YY copy when moving forward

p after pasting to current line

P Paste before current line

/from top down, n next n prev

? From the bottom of the online check, n next n prev

: S/xxx/bbb/g replaces the current line of XXX for BBB

:%s/xxx/bbb/g replaces all lines of XXX for BBB

: 1,5s/xxx/bbb/g replaces 1-5 lines of XXX for BBB

ZZ Save and exit

: Set Nu (or number) displays line numbers

Tips for Shell common commands