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Undo is an interaction technique which is implemented in many computer programs. It erases the last change done to the document, reverting it to an older state. In some more advanced programs, such as graphic processing, undo will negate the last command done to the file being edited.
In the 1980s, many text editors and word processors mimicked the WordStar command set, making Ctrl+Y a common synonym for "delete line." In Borland IDEs it also deletes the current line. In emacs it does a paste action (known as "yank"). [4] Emacs uses Ctrl+/ for Undo and Redo. In vi and vim it scrolls the display up one line. [5]
The Wiki software enables editors to easily revert (undo) a single edit from the history of a page, without simultaneously undoing other changes that have been made since. To do this, view the page history or the diff for the edit, then click on "undo" next to the edit in question. The software will attempt to create an edit page with a version ...
Keyboard shortcuts make it easier and quicker to perform some simple tasks in your AOL Mail. Access all shortcuts by pressing shift+? on your keyboard.. All shortcuts are formatted for Windows computers, but most will work on a Mac by substituting Cmd for Ctrl or Option for Alt.
COMMAND. ACTION. Ctrl/⌘ + C. Select/highlight the text you want to copy, and then press this key combo. Ctrl/⌘ + F. Opens a search box to find a specific word, phrase, or figure on the page
Toggle selected state of focused checkbox, radio button, or toggle button Space: Space: Space: Space: Activate focused button, menu item etc. ↵ Enter: Space (also ↵ Enter [notes 5] for menu items) ↵ Enter: ↵ Enter: Expand a drop-down list F4 or Alt+↓: Select/move to first/last item in selected widget Home / End: Home / End
⌘ Z : Undo (represents the do-undo-redo cycle) ⌘ X : Cut (resembles scissors or a general sign for removal – and the X key is next to the C key on a QWERTY keyboard) ⌘ C : Copy; ⌘ V : Paste (resembles the proofreader's mark for "insert" – and the V key is next to the C key on a QWERTY keyboard) [19] ⌘ N : New Document; ⌘ .
A Control key (marked "Ctrl") on a Windows keyboard next to one style of a Windows key, followed in turn by an Alt key The rarely used ISO keyboard symbol for "Control". In computing, a Control keyCtrl is a modifier key which, when pressed in conjunction with another key, performs a special operation (for example, Ctrl+C).