# Editing Cursors, selections, movement, find and replace, and what happens on save. Rip is a plain text editor with the moves you expect, plus a few that come from its syntax tree. `secondary` means ⌘ on macOS and Ctrl on Linux. ## Multiple cursors secondary-d selects the word under the cursor. Press it again to add the next match. secondary-k secondary-d skips the current match and takes the next one. secondary-shift-l selects every match at once. secondary-alt-up and secondary-alt-down add a cursor on the line above or below. alt-shift-i turns one selection into a cursor at the end of each of its lines. Hold alt and click to add a cursor anywhere. escape returns to one cursor. ## Selection secondary-l selects the line, and secondary-a selects the whole file. alt-up grows the selection to the enclosing syntax node: a word, then an expression, then a block. alt-down shrinks it again. shift with any movement key extends the selection. ## Movement | Keys | Moves | | --- | --- | | alt-left / alt-right | By word. | | secondary-left / secondary-right | To the start or the end of the line. | | secondary-up / secondary-down | To the start or the end of the file. | | pageup / pagedown | By one screen. | | alt-] / alt-[ | To the next or the previous changed hunk. | | ctrl-g | To a line number. | To move the current line up or down, press ctrl-secondary-up or ctrl-secondary-down on macOS. On Linux, press ctrl-shift-up or ctrl-shift-down. ## Change text | Keys | What happens | | --- | --- | | secondary-z / secondary-shift-z | Undo and redo. | | secondary-shift-d | Duplicate the line. | | secondary-shift-k | Delete the line. | | ctrl-j | Join the line with the next one. | | secondary-/ | Comment or uncomment the selection. | | secondary-] / secondary-[ | Indent or outdent. | | secondary-enter / secondary-shift-enter | Start a new line below or above. | | alt-backspace / alt-delete | Delete to the start or the end of the word. | | secondary-backspace / secondary-delete | Delete to the start or the end of the line. | | alt-z | Turn soft wrap on or off for this file. | ## Find and replace secondary-f opens the search bar. Type, and Rip highlights every match. enter goes to the next match and shift-enter to the previous one. secondary-g and secondary-shift-g do the same from the editor. escape closes the bar. secondary-alt-f opens the replace field. secondary-enter replaces the current match, and secondary-alt-enter replaces every match. To search every file in the folder, see [Search and traces](/docs/search-and-traces.md). ## Save secondary-s saves the file, secondary-shift-s saves it under a new name, and secondary-alt-s saves every open file. On save, Rip removes trailing whitespace and adds a final newline when the settings below say so. A file can change on disk while you edit it. Rip merges the two versions and never writes over the change on disk. [Working with agents](/docs/working-with-agents.md#your-edits-stay-yours) explains the merge and the keys for a conflict. ## Settings | Key | What it changes | | --- | --- | | `tab-size` | The width of a tab, and the size of one indent. | | `indent` | Whether tab inserts spaces or a tab. | | `soft-wrap` | Whether long lines wrap at the window edge. | | `line-numbers` | Whether the gutter shows line numbers. | | `relative-line-numbers` | Whether line numbers count from the cursor. | | `cursor-blink` | Whether the cursor blinks. | | `show-whitespace` | When to draw spaces and tabs: never, always, or in a selection. | | `indent-guides` | Whether indent levels get a guide line. | | `trim-trailing-whitespace-on-save` | Remove spaces at the end of each line on save. | | `ensure-final-newline-on-save` | End the file with a newline on save. |