Linux Notes and Tips

This repository will be my notes and tips on Linux, especially the command-line. I am learning how to use vi, cut, sed, awk and such useful commands in Linux. This repository will consist of command-line tools, editors and tips about such tools on Linux.

TOC

• 1 Vi Editor
  
  • 1-a- General
    
  • 1-b- Cursor Movement
    

1 Vi Editor

1-a General

command	description
Esc	Command Mode
i	Insert Mode
:q	Quit
:q!	! means ignoring modification on file
:wq	Write and quit
ZZ	Write and quit
:w filename2.txt	Write to another filename

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1-b Cursor Movement

Basic cursor movement:

command	description
k	Move cursor up
j	Move cursor down
h	Move cursor left
l	Move cursor right
nk	Move cursor up n times
nj	Move cursor down n times
nh	Move cursor left n times
nl	Move cursor right n times

         k

         |
         |
         |
h  ------.------  l
         |
         |
         |

         j

Move cursor within the line:

command	description
0 or |	Start of the line
$	End of the line

Move cursor by word:

command	description
w	Next word
b	Previous word

Move cursor by sentence:

command	description
(	Beginning of the sentence, based on .
)	End of the sentence, based on .

Move cursor by paragraph:

command	description
}	Next paragraph
{	Previous paragraph

Move cursor by character:

command	description
f?	Next ? in the current line
F?	Previous ? in the current line

Move cursor to the border of the view:

command	description
1G or gg	Begining
G	End
nG	nth line
---	---
H	Top of the view
M	Mid of the view
L	Low of the view

Move cursor by line:

command	description
nH	nth line from Top
nL	nth line from Low
---	---
:n	Move cursor to the nth line
---	---
ctrl+b	One page up
ctrl+u	Half page up
ctrl+d	Half page down
ctrl+f	One page down
---	---
ctrl+y	One line up
ctrl+e	One line down

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