vi editor.pptx

8/10/2019 vi Editor.pptx

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The vi Editor


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The vi Editor

The three modes of vi Editor:1.Command Mode: The default mode of the editor

where every key pressed is interpreted as a

command to run on text. To copy, delete text &

navigate, this mode is used.

2.Input Mode: Every key pressed after switching to

this mode actually show up as text. To input text,

this mode is used.3.ex Mode(Last Line Mode): The mode used to

handle files (like saving) and perform

substitution.


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The vi Editor


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INPUT MODEENTERING AND REPLACING TEXT


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Insertion of Text (i and a)


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Insertion of Text at Line Extremes (I and A)


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Opening a New Line (o and O)


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Replacing Text (r, s, R and S)


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Replacing Text (r, s, R and S)


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Input Mode Commands


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ex MODE SAVING TEXT AND QUITTING

Saving the Work (:w)


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Saving and Quitting (:x and :wq)


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Aborting Editing (:q)


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Writing Selected Lines


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Writing Selected Lines


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Escape to the UNIX Shell (:sh and [Ctrl-z])


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Recovering from a Crash (:recover andr)


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Save and Exit Commands of the ex Mode


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Command MODE NAVIGATION

Movement in the Four Directions (h, j, k and l)


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Movement in the Four Directions (h, j, k and l)


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Word Navigation (b, e and w)


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Moving to Line Extremes (0, | and $)


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Moving to Line Extremes (0, | and $)


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Scrolling ([Ctrl-f], [Ctrl-b], [Ctrl-d] and [Ctrl-u])


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Absolute Movement (G)


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Command MODE EDITING TEXT

Editing TextDeleting characters (x, X)


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Editing TextDeleting lines (dd)


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Editing TextMoving Text (p, P)


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Editing TextCopying Text (y and p)


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Editing TextJoining Lines (J)


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Undoing Last Editing Instructions (u and U)


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Repeating the Last Command (.)


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Repeating the Last Command (.)


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Searching for a Pattern ( / and ? )


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Repeating the Last Pattern Search (n and N)


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Search and Repeat Commands


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ex MODE

Substitution Search and Replace ( :s )


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ex MODE



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ex MODE



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Basic File Attributes

ls -lListing File Attributes


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1. File Type and Permissions

2. Links

3. Ownership

4. Group Ownership

5. File Size

6. Last Modification Time7. Filename


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Thed Option: Listing Directory Attributes


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File Ownership


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File Permissions

Categories

1. Owner (User)2. Group Owner

3. Others (World)

Permissions

1. Read2. Write

3. Execute


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chmod: Changing File Permissions


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Relative Permissions (Symbolic Codes)


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Absolute Permissions (Octal Codes)


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Using chmod Recursively (-R)


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chownChanging File Owner


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chownChanging File Owner


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chgrpChanging Group Owner


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chgrpChanging Group Owner

vi editor.pptx

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