Tag Archives: Linux

vi Editor Commands

Hi,

I found a listed of commands to work with vi editor in linux. That’s all folks

Captura de pantalla vi

Captura de pantalla vi - Pantalla capturada con Cmd+Shift+4 y luego Space Bar

 

General Startup
To use vi: vi filename
To exit vi and save changes: ZZ or :wq
To exit vi without saving changes: :q!
To enter vi command mode: [esc]
Counts
A number preceding any vi command tells vi to repeat
that command that many times.
Cursor Movement

h move left (backspace)

j move down

k move up

l move right (spacebar)

[return] move to the beginning of the next line

$ last column on the current line

0 move cursor to the first column on the
current line

^ move cursor to first nonblank column on the
current line

w move to the beginning of the next word or
punctuation mark

W move past the next space

b move to the beginning of the previous word
or punctuation mark

B move to the beginning of the previous word,
ignores punctuation

e end of next word or punctuation mark

E end of next word, ignoring punctuation

H move cursor to the top of the screen

M move cursor to the middle of the screen

L move cursor to the bottom of the screen
Screen Movement

G move to the last line in the file

xG move to line x

z+ move current line to top of screen

z move current line to the middle of screen

z- move current line to the bottom of screen

^F move forward one screen

^B move backward one line

^D move forward one half screen

^U move backward one half screen

^R redraw screen
( does not work with VT100 type terminals )

^L redraw screen
( does not work with Televideo terminals )
Inserting

r replace character under cursor with next
character typed

R keep replacing character until [esc] is hit

i insert before cursor

a append after cursor

A append at end of line

O open line above cursor and enter append mode
Deleting

x delete character under cursor

dd delete line under cursor

dw delete word under cursor

db delete word before cursor
Copying Code

yy (yank)’copies’ line which may then be put by
the p(put) command. Precede with a count for
multiple lines.
Put Command
brings back previous deletion or yank of lines,
words, or characters

P bring back before cursor

p bring back after cursor

Find Commands

? finds a word going backwards

/ finds a word going forwards

f finds a character on the line under the
cursor going forward

F finds a character on the line under the
cursor going backwards

t find a character on the current line going
forward and stop one character before it

T find a character on the current line going
backward and stop one character before it

; repeat last f, F, t, T
Miscellaneous Commands

. repeat last command

u undoes last command issued

U undoes all commands on one line

xp deletes first character and inserts after
second (swap)

J join current line with the next line

^G display current line number

% if at one parenthesis, will jump to its mate

mx mark current line with character x

‘x find line marked with character x

NOTE: Marks are internal and not written to the file.
Line Editor Mode
Any commands form the line editor ex can be issued
upon entering line mode.

To enter: type ‘:’

To exit: press[return] or [esc]
ex Commands
For a complete list consult the
UNIX Programmer’s Manual
READING FILES
copies (reads) filename after cursor in file
currently editing

:r filename
WRITE FILE

:w saves the current file without quitting
MOVING

:# move to line #

:$ move to last line of file
SHELL ESCAPE
executes ‘cmd’ as a shell command.

:!’cmd’

From: http://www.cs.rit.edu/~cslab/vi.html

 


Installing HP LaserJet 1018 in Ubuntu Linux 8.04 and 8.10 with HPLIP 2.8.5

After a couple of unsuccessful attempts :(, I have Installed my laser printer in Ubuntu 8.04. And here I’ll show you the steps carried out to accomplish with this.

UPDATE TO THIS POST: I’ve Installed my printer in Ubuntu 8.10 but, for this release I made some changes that are commented ahead.

Download to HPLIP applications from HP Linux Imaging and printing web site, clicking in “Download the Automatic Installer”
After, execute installer running in console (into folder that you have the file)

sh hplip-2.8.5.run

Follow the instructions…

I selected automatic installation mode.

I confirmed my Linux distributions. Note: For Ubuntu 8.10 I selected “n” in order to indicate that version is not correct (despite it said the correct version). For details see next image

Select Distribution

Select Distribution

I entered my root password and so on….

To finish, the application will launch a Windows form..

HP-Setup

  1. Select “USB..”
  2. Select you printer in the list show in “Select from Discovered Devices”
  3. Select recommended option in “Select/Confirm PPD File”
  4. and add details in “Enter Printer Information” such as pictured below. If see disable “Next” button, you should delete all field in form and add information again. I spent lot of time thinking what is the wrong field because, until you edit the field this will not show in red.

screenshot-hp-device-manger-printer-setup-wizard

Ready.
;)