08 Viewing and Editing Files

cat

more

less

head

tail

 

Head and Tail  display only 10 lines by default

tail -15 file.tyxt

 

nano

pico

 

Vi Editor

vi file

vim file same as vi but more features

view file start vim in read-only mode

 

k  up one line

j down one line

h left one character

l right one character

w right one wiorf

b left one word

^ go to geginning of the line

$ go to the end of the line

vi navigation keys

i insert at the cursor position

I insert at the beginning of the line

a Append after the cursor position

A append at the end of the line.

vi modes

 

Vi Repeating Commands

Vi Repeating Commands

 

Vi Deleting Text

 

delete a character

dw delete a word

dd delete a line

D delete from the current position

 

Vi Changing Text

r replace the current character

cw change the current word

cc change the current line

c$ change the text from the current position

C same as c$

~ Reverse the case of a character

 

Graphical Editors

 

emacs

gedit  default for Gnome

gvim

kedit default for KDE