Книга: Learning GNU Emacs, 3rd Edition
2.1.4 Centering the Display
2.1.4 Centering the Display
C-l, the recenter command, puts the current line in the center of the window vertically. This feature is useful if you're typing at the bottom or the top of the display. Typing C-l quickly moves the material that you care about to the middle of the display, where it is easier to see the full context.
C-l also redraws the display, if for any reason it appears obscured or contains random characters. This doesn't happen as often as it used to when we used terminals, but it can be a handy thing to know about, especially if you find yourself using Emacs remotely in a terminal interface.
Table 2-2 lists cursor movement commands. If the command is mnemonic, the word to remember is given in italics.
Table 2-2. Cursor movement commands
| Keystrokes | Command name | Action |
|---|---|---|
| C-f | forward-char | Move forward one character (right). |
| C-b | backward-char | Move backward one character (left). |
| C-p | previous-line | Move to previous line (up). |
| C-n | next-line | Move to next line (down). |
| M-f | forward-word | Move one word forward. |
| M-b | backward-word | Move one word backward. |
| C-a | beginning-of-line | Move to beginning of line. |
| C-e | end-of-line | Move to end of line. |
| M-e | forward-sentence | Move forward one sentence. |
| M-a | backward-sentence | Move backward one sentence. |
| M-} | forward-paragraph | Move forward one paragraph. |
| M-{ | backward-paragraph | Move backward one paragraph. |
| C-v | scroll-up | Move forward one screen. |
| M-v | scroll-down | Move backward one screen. |
| C-x ] | forward-page | Move forward one page. |
| C-x [ | backward-page | Move backward one page. |
| M-< | beginning-of-buffer | Move to beginning of file. |
| M-> | end-of-buffer | Move to end of file. |
| (none) | goto-line | Go to line n of file. |
| (none) | goto-char | Go to character n of file. |
| C-l | recenter | Redraw screen with current line in the center. |
| M-n | digit-argument | Repeat the next command n times. |
| C-u n | universal-argument | Repeat the next command n times (four times if you omit n). |
Оглавление книги
- 4.4.4 The Dispatcher
- About the author
- Chapter 7. The state machine
- Appendix E. Other resources and links
- Example NAT machine in theory
- The final stage of our NAT machine
- Compiling the user-land applications
- The conntrack entries
- Untracked connections and the raw table
- Basics of the iptables command
- Other debugging tools
- Setting up user specified chains in the filter table