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Introduction:

  • This workshop will introduce how to use the vim command-line text editor within a Linux environment. 

  • It will cover the basics on opening and updating a text file, how to navigate around the text, and how to search for terms. 

  • After the workshop, participants will have the skills to use a text editor to create basic scripts. 

  • Participants are expected to have an introductory level of experience using Linux from the command line – such as that provided by the Intro to Linux workshop.

Goals:

  • To introduce users, using the Linux command line environment, to text editors: Specifically vim.

  • Open, edit, update, save and quit a text editor.

  • Use the keyboard and shortcuts to navigate around the text file.

  • Use the command line to search for terms within the text file.



01 Getting Started


01.01 Login

  1. Open up Chrome

  2. Navigate to: https://southpass.arcc.uwyo.edu/

  3. Start Beartooth Shell Access

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01.02 Download Slides

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02 Why do we need a Text Editor?


02.01: Using the Terminal/Command-Line

  • We have a non-GUI/non-Windows environment.

  • Unable to start a GUI/Window text-editor type application.

  • We’re using the command-line.


02.03: Available Text Editors


02.04: Why vim?

  • Considerations:

    • What’s available on the system you’re using?

    • Can you install other editors?

    • What is your personal choice?

    • Note: On our Beartooth cluster, vi is an alias for vim – meaning if you start vi, vim will start.


03 Vim Tutor


03:01 Vim Tutor

  • Using the vimtutor to “teach by use”

  • Should be available on other systems you use vim upon.

  • Can continue to learn.

[arc-t05@blog2 ~]$ vimtutor
===============================================================================
=    W e l c o m e   t o   t h e   V I M   T u t o r    -    Version 1.7      =
=============================================================================== 
     Vim is a very powerful editor that has many commands, too many to 
     explain in a tutor such as this. This tutor is designed to describe 
     enough of the commands that you will be able to easily use Vim as 
     an all-purpose editor. 
     ...

04 Vimtutor: Lesson 1: Cursor Exit Delete Insert Append

Lesson 1.1: MOVING THE CURSOR
Lesson 1.2: EXITING VIM
Lesson 1.3: TEXT EDITING - DELETION
Lesson 1.4: TEXT EDITING - INSERTION
Lesson 1.5: TEXT EDITING - APPENDING
Lesson 1.6: EDITING A FILE

04:02 Vimtutor Lesson 1: Summary

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                               Lesson 1 SUMMARY
  1. The cursor is moved using either the arrow keys or the hjkl keys.
         h (left)       j (down)       k (up)       l (right)
  2. To start Vim from the shell prompt type:  vim FILENAME <ENTER>
  3. To exit Vim type:     <ESC>   :q!   <ENTER>  to trash all changes.
             OR type:      <ESC>   :wq   <ENTER>  to save the changes.
  4. To delete the character at the cursor type:  x
  5. To insert or append text type:
         i   type inserted text   <ESC>         insert before the cursor
         A   type appended text   <ESC>         append after the line
NOTE: Pressing <ESC> will place you in Normal mode or will cancel
      an unwanted and partially completed command.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

05 Vimtutor: Lesson 2: Delete Move

Lesson 2.1: DELETION COMMANDS
Lesson 2.2: MORE DELETION COMMANDS
Lesson 2.3: ON OPERATORS AND MOTIONS
Lesson 2.4: USING A COUNT FOR A MOTION
Lesson 2.5: USING A COUNT TO DELETE MORE
Lesson 2.6: OPERATING ON LINES
Lesson 2.7: THE UNDO COMMAND

05:02 Vimtutor Lesson 2: Summary:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                               Lesson 2 SUMMARY
  1. To delete from the cursor up to the next word type:    dw
  2. To delete from the cursor to the end of a line type:    d$
  3. To delete a whole line type:    dd
  4. To repeat a motion prepend it with a number:   2w
  5. The format for a change command is:
               operator   [number]   motion
     where:
       operator - is what to do, such as  d  for delete
       [number] - is an optional count to repeat the motion
       motion   - moves over the text to operate on, such as  w (word),
                  $ (to the end of line), etc.
  6. To move to the start of the line use a zero:  0
  7. To undo previous actions, type:           u  (lowercase u)
     To undo all the changes on a line, type:  U  (capital U)
     To undo the undo's, type:                 CTRL-R
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

06 Vimtutor: Lesson 3: Put Replace

Lesson 3.1: THE PUT COMMAND
Lesson 3.2: THE REPLACE COMMAND
Lesson 3.3: THE CHANGE OPERATOR
Lesson 3.4: MORE CHANGES USING c

06:02 Vimtutor Lesson 3: Summary

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                               Lesson 3 SUMMARY
  1. To put back text that has just been deleted, type   p .  This puts the
     deleted text AFTER the cursor (if a line was deleted it will go on the
     line below the cursor).
  2. To replace the character under the cursor, type   r   and then the
     character you want to have there.
  3. The change operator allows you to change from the cursor to where the
     motion takes you.  eg. Type  ce  to change from the cursor to the end of
     the word,  c$  to change to the end of a line.
  4. The format for change is:
         c   [number]   motion
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

07 Vimtutor: Lesson 4: Search

Lesson 4.1: CURSOR LOCATION AND FILE STATUS
Lesson 4.2: THE SEARCH COMMAND
Lesson 4.3: MATCHING PARENTHESES SEARCH
Lesson 4.4: THE SUBSTITUTE COMMAND

07:02 Vimtutor Lesson 4: Summary

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                               Lesson 4 SUMMARY
  1. CTRL-G  displays your location in the file and the file status.
             G  moves to the end of the file.
     number  G  moves to that line number.
            gg  moves to the first line.
  2. Typing  /  followed by a phrase searches FORWARD for the phrase.
     Typing  ?  followed by a phrase searches BACKWARD for the phrase.
     After a search type  n  to find the next occurrence in the same direction
     or  N  to search in the opposite direction.
     CTRL-O takes you back to older positions, CTRL-I to newer positions.
  3. Typing  %  while the cursor is on a (,),[,],{, or } goes to its match.
  4. To substitute new for the first old in a line type    :s/old/new
     To substitute new for all 'old's on a line type       :s/old/new/g
     To substitute phrases between two line #'s type       :#,#s/old/new/g
     To substitute all occurrences in the file type        :%s/old/new/g
     To ask for confirmation each time add 'c'             :%s/old/new/gc
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

08 Next Steps


08.01 Next Steps on using Vim


08.02 Further Trainings: UWYO LinkedIn


08.03 Summary

In this workshop we have:

  • Introduced users, using the Linux command line environment, to text editors: Specifically vim.

  • Demonstrated how to:

    • Open, edit, update, save and quit a text editor.

    • Use the keyboard and shortcuts to navigate around the text file.

    • Use the command line to search for terms within the text file.

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