Use VIM Efficiently.

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List of some essential Vim commands along with their descriptions:

1. Navigation:

   - `h`, `j`, `k`, `l`: Move left, down, up, and right respectively.

   - `gg`: Go to the first line of the file.

   - `G`: Go to the last line of the file.

   - `0`: Move to the beginning of the line.

   - `$`: Move to the end of the line.

   - `w`: Move to the beginning of the next word.

   - `b`: Move to the beginning of the previous word.


2. Editing:

   - `i`: Enter insert mode at the current cursor position.

   - `a`: Enter insert mode after the current cursor position.

   - `o`: Insert a new line below the current line and enter insert mode.

   - `O`: Insert a new line above the current line and enter insert mode.

   - `x`: Delete the character under the cursor.

   - `dd`: Delete the current line.

   - `yy`: Yank (copy) the current line.

   - `p`: Paste the yanked text after the current cursor position.

   - `u`: Undo the last change.

   - `Ctrl + r`: Redo the last undo.


3. Saving and Quitting:

   - `:w`: Save the file.

   - `:q`: Quit Vim (if no changes are made).

   - `:wq` or `ZZ`: Save and quit.

   - `:q!`: Quit Vim without saving (force quit).


4. Search and Replace:

   - `/search_term`: Search forward for 'search_term'.

   - `?search_term`: Search backward for 'search_term'.

   - `n`: Move to the next search result.

   - `N`: Move to the previous search result.

   - `:%s/old/new/g`: Replace 'old' with 'new' globally in the file.


5. Copy, Cut, and Paste (Visual mode):

   - `v`: Enter visual mode to select text character by character.

   - `V`: Enter visual mode to select whole lines.

   - `Ctrl + v`: Enter visual block mode to select text in a block.

   - `y`: Yank (copy) the selected text.

   - `d`: Delete (cut) the selected text.


6. Working with Multiple Files:

   - `:e filename`: Open a new file 'filename' in a new buffer.

   - `:bnext` or `:bn`: Move to the next buffer.

   - `:bprev` or `:bp`: Move to the previous buffer.

   - `:bd`: Close the current buffer (file).


7. Miscellaneous:

   - `:set number`: Display line numbers in the file.

   - `:set hlsearch`: Highlight search results as you type.

   - `:set ignorecase`: Ignore case while searching.


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