org-roam/20230522113406-emacs.org

emacs

• Buffer
• M-X
• Index (Packages)
  • sudo auf files zugreifen
    • tramp
  • key menu (invoked by colon or space)
    • hydra
  • Gcal Calendar
    • org-gcal
  • Tex
    • synctex
    • auctex
  • PDF-View
    • pdf-tools
  • Navigation
    • neotree
    • dired
    • deft
    • projectile
  • Programme launcher
    • counsel-linux-app
  • File System
    • org-attach
  • Website Scraper
    • org-web-tools
  • Helm
    • helm-org-rifle
    • helm-bibtex
  • second brain
    • org-roam

One of the most important tools of every Arco-Linux distribution. Emacs is a plain text editor, that can be expanded with various packages. Some Packages and their usage is listed here. In most cases not the sole emacs is used, but the server version (local server) of emacs. The server runs at boot but can be evoked by running:

  emacs --daemon

To start a second daemon you have to give a specific name to the second instance so emacs knows which server to address. This is done via the command:

  emacs --daemon=<name of server>

To use the text editor (emacs) use the command to start a client:

  emacsclient -cn <name of document>

The -c flag suggests emacs to open a new frame (so the use of emacs and the document is not blocked for other members (e.g. in ssh). The -n Flag suggest not to wait for emacs to close, so the prompt is given back to the shell. For emacs in Terminal mode (for ssh purposes) use the -t flag instead of the -n flag. To use emacsclient as command interpreter, use the -e flag:

 emacsclient -e ('kill-emacs') #kills the emacs process

To use a different emacs server (has to be running) use the -s flag and give the name of the daemon

  emacsclient -ct -s <name of daemon>

Emacs uses commands to change its behavior or simply do things. Those commands use command keys like control (c- ), alt (m- ) or space (s- ) . To use a command press the command. If pressed a minibuffer opens, there all possible commands are listed. For Example, to save your work use the command chain control x control s (c-x c-s). You can keep the control key pressed and simply press the next chain key.

Buffer

Emacs works with so called buffers. A buffer is an instance that can hold text (e.g. a text document or a menu. to switch between opened buffers that are running in the server instance use c-m-j. If you close amecsclient while the server is running, the buffer is not closed but still exist in the buffer list. you can close a buffer (switch focus, unsaved changtes are still there) by pressing c-0 or kill a buffer (like closing for real, unsaved changes are gone) by pressing c-k. you can have more than one buffer in view at the same time. To view a second buffer side by side press c-x c-3. To view them top-down press c-x c-2. To close a buffer that is not in focus press c-x c-1 (instead of closing the one in focus with c-x c-0. A sub category are minibuffers. Those can pop up for notifications, menus or other things. They do not take the whole screen.

M-X

There are things that do not have a keychain attached to them. To acitvate those (or all) commands you have to use the M-x command prompt. Press m-x and type the name of the command you want to use. For example:

  M-x package-install <name of package> ;;installs a package in emacs

Index (Packages)

sudo auf files zugreifen

tramp

sudo access for files in a dired buffer.

key menu (invoked by colon or space)

hydra

additional menues for emacs buffers.

Gcal Calendar

org-gcal

Google calendar intergration for org buffers.

Tex

synctex

syncs the pdf to the latex buffer in emacs.

auctex

latex support (IDE) for emacs buffers.

PDF-View

pdf-tools

View PDF files in an emacs buffer. Does not work in a terminal or shell (via ssh).

Navigation

neotree

Visualizes the File tree in a buffer (interactive).

dired

Simple File Browser in a minibuffer.

deft

Strong File Searcher for defined folders. Especialy good with roam home folder.

projectile

File managemant for project folders and files of same type.

Programme launcher

counsel-linux-app

Change the behaviour of M-x minibuffer.

File System

org-attach

Attach files to a org heading and categorize the entry.

Website Scraper

org-web-tools

Extract files and text from websites.

Helm

helm-org-rifle

Strong file and text search engine for org files.

helm-bibtex

helm search engine integration for literature and bibtex entries.

second brain

org-roam

Data assemble and structorization engine with database.

Note: Emacs mode can also be used for GMSH, openFoam and matlab.