Source: GNU Emacs Manual Replace a character with a new line M-x string-insert-rectangle RET string RET: Insert string on each line of the rectangle.C-x r t string RET: Replace rectangle contents with string on each line.M-x delete-whitespace-rectangle: Delete whitespace in each of the lines on the specified rectangle, starting from the left edge column of the rectangle.M-x clear-rectangle: Clear the region-rectangle by replacing its contents with spaces.This pushes the previous contents of the region-rectangle rightward. C-x r o: Insert blank space to fill the space of the region-rectangle (open-rectangle).C-x r y: Yank the last killed rectangle with its upper left corner at point (yank-rectangle).C-x r d: Delete the text of the region-rectangle (delete-rectangle).C-x r k: Kill the text of the region-rectangle, saving its contents as the “last killed rectangle” (kill-rectangle).There are more operations for rectangular selection: In order to accomplish this, select the region and press C-x r t, emacs will ask the text to introduce, then press enter and that’s it. When wanting to select a region of text and perform an action in it, for example remove white spaces, add some text right before each sentence and so on. Source: Using Emacs to recursively find and replace in text files not already open Rectangular selection Write down the regex, for every file matches it is necessary to confirm the operation, in order to replace the contents in all the files at once, press A.Press Q to run the command query-replace for every file marked.Run M-x find-name-dired and write the directory where files in which to look for matches are.Search using a regular expression or a simple text in multiple files at once, or a entire directory and replace all the matches found. Miscellaneous / Common tasks Search & replace in multiple files at once This snippet expand to a Markdown code block, $1 is the first position where the cursor is placed to start writing, $2 the second and so on. ![]() For example:Įvery blog post in this blog has a Frontmatter, one of its variables holds the last time the post was modified, in order to quickly write the current date, I’ve created the following YaSnippet: By default YaSnippet has a set of pre-defined snippets for practically every language, but it is possible to configure our own ones. YaSnippet is a template system for emacs, it is a must have package for every emacs user. ![]() Now, lets start with the collaborative Emacs CheatSheet: Useful packages Yasnippet I’ve been using emacs for a few months now and I’m pretty happy about it. But I want this cheatsheet to be different, my idea is that all of you using emacs help this cheatsheet grow with your own tips and favorite commands & packages. Today CheatSheet is going to be about Emacs. There is a bunch of post about cheatsheets in this blog: Vertical align with the given character.Execute an action for all opened buffers.Delete trailing white spaces at the end of a line. ![]()
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