emacs(1)

help

  C-h ?         list available help modes
-  C-h f         describe function
-  C-h v         describe variable
-  C-h c <KEY>   print command bound to <KEY>
-  C-h k <KEY>   describe command bound to <KEY>
-  C-h b         list buffer local key-bindings
-  <kseq> C-h    list possible key-bindings with <kseq>
-                eg C-x C-h -> list key-bindings beginning with C-x
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package manager

  package-refresh-contents    refresh package list
-  package-list-packages       list available/installed packages
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window

  C-x 0         kill focused window
-  C-x 1         kill all other windows
-  C-x 2         split horizontal
-  C-x 3         split vertical
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yank/paste

  C-<SPACE>  set start mark to select text
-  M-w        copy selected text
-  C-w        kill selected text
-  C-y        paste selected text
-  M-y        cycle through kill-ring
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block/rect

  C-x <SPC>                     activate rectangle-mark-mode
-  M-x string-rectangle <RET>    insert text in marked rect
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mass edit

  C-x h                                 mark whole buffer (mark-whole-buffer)
-  M-x delete-matching-line <RET>        delete lines matching regex
-  M-x %                                 search & replace region (query-replace)
-  C-M-x %                               search & replace regex (query-replace-regexp)
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grep

  M-x find-grep <RET>           run find-grep result in *grep* buffer
-  n/p                           navigate next/previous match in *grep* buffer
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lisp mode

  M-x lisp-interaction-mode     activate lisp mode
-  C-M-x                         evaluate top expr under cursor
-  C-x C-e                       eval-last-sexp
-  C-u C-x C-e                   eval-last-sexp and prints result in current buffer
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narrow

  C-x n n               show only focused region (narrow)
-  C-x n w               show whole buffer (wide)
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org

  M-up/M-down           re-arrange items in same hierarchy
-  M-left/M-right        change item hierarchy
-  C-RET                 create new item below current
-  C-S-RET               create new TODO item below current
-  S-left/S-right        cycle TODO states
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org source

  <s TAB                generate a source block
-  C-c '                 edit source block (in lang specific buffer)
-  C-c C-c               eval source block
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Notes