Linux Tips

Here are some helpful Linux tips for command-line efficiency:

# Nano Text Editor Cheat Sheet

Nano is a simple and user-friendly text editor for the command line. Here’s a cheat sheet to help you quickly navigate and use Nano efficiently.

## Basic Commands

| Command | Description |
|---------|-------------|
| `nano [filename]` | Open or create a file in Nano. |
| `nano` | Open Nano with a blank buffer. |
| `nano +[line_number] [filename]` | Open a file at a specific line number. |

## Navigating the Text

| Keybinding | Action |
|------------|--------|
| `Ctrl + A` | Move to the beginning of the line. |
| `Ctrl + E` | Move to the end of the line. |
| `Ctrl + Y` | Scroll up one screen. |
| `Ctrl + V` | Scroll down one screen. |
| `Ctrl + W` | Search for text. |
| `Ctrl + \` | Search and replace text. |
| `Alt + ]` | Move to the next matching bracket. |
| `Alt + [` | Move to the previous matching bracket. |
| `Ctrl + C` | Show the cursor's current position. |

## Editing Text

| Keybinding | Action |
|------------|--------|
| `Ctrl + K` | Cut the current line. |
| `Ctrl + U` | Paste the last cut text. |
| `Ctrl + J` | Justify (format) the current paragraph. |
| `Ctrl + T` | Spell check the text. |
| `Ctrl + W` | Find text within the file. |
| `Alt + 6` | Copy the current line. |
| `Ctrl + ^` | Select text (start with Ctrl + ^, then navigate). |

## File Operations

| Keybinding | Action |
|------------|--------|
| `Ctrl + O` | Save the file. |
| `Ctrl + X` | Exit Nano. |
| `Ctrl + R` | Insert another file into the current one. |
| `Ctrl + T` | Open the file browser (when saving). |

## Working with Multiple Buffers

| Keybinding | Action |
|------------|--------|
| `Ctrl + R` | Insert content from another file. |
| `Ctrl + X` | Close the current buffer. |
| `Ctrl + ^` | Switch between buffers. |

## Nano Configuration Options

| Keybinding | Action |
|------------|--------|
| `Alt + L` | Enable/disable line numbers. |
| `Alt + X` | Enable/disable soft wrapping. |
| `Alt + U` | Undo the last action. |
| `Alt + E` | Redo the last undone action. |
| `Ctrl + G` | Display help screen. |

## Tips and Shortcuts

- **Search and Replace:** Press `Ctrl + \` to search and replace text interactively.  
- **Undo/Redo:** Use `Alt + U` (undo) and `Alt + E` (redo).  
- **View Line Numbers:** Enable with `Alt + L`.  
- **Syntax Highlighting:** Enable in `/etc/nanorc` by uncommenting syntax include files.  
- **Backup Files:** Nano creates backup files by appending a `~` to the filename when enabled.  

## Exit Commands

| Keybinding | Action |
|------------|--------|
| `Ctrl + X` | Exit Nano (prompts to save if unsaved). |
| `Ctrl + C` | Cancel the current command. |