cheat-sheets

Obsidian

Obsidian is a local-first note-taking and knowledge-base app. Notes are plain Markdown files in a folder (a vault), linked together with [[wikilinks]]. This repository uses standard relative Markdown links instead, so it also works on GitHub and outside Obsidian (Obsidian can be set to use Markdown links under Settings, Files and links).

Homepage: Obsidian Help: Obsidian Help


Using This Repo as a Vault #

  1. Open Obsidian, choose Open folder as vault and pick the cloned repository.
  2. Wikilinks between sheets resolve by file name, so [[docker]] opens docker/docker.md.
  3. The vault settings live in .obsidian/ inside the folder and are git-ignored here.

See Git for the version control side.

Vault and Files #

  • A vault is just a folder. Everything is plain .md, so any editor, grep or Git works on it.
  • .obsidian/ holds settings, themes and plugins for that vault. Commit it only if you want to share your setup.
  • Attachments (images, PDFs) sit in the vault; the default folder is set under Settings > Files and links.
SYNTAXDESCRIPTION
[[Note]]Link to a note
[[Note|alias]]Link with different display text
[[Note#Heading]]Link to a heading
[[Note#^block-id]]Link to a block (add ^block-id at the end of the block)
![[Note]]Embed a note
![[image.png|300]]Embed an image at 300 px wide
#tag / #parent/childTag and nested tag
- [ ] taskTask checkbox
> [!note] TitleCallout (also tip, warning, danger, info, and more)
==highlight==Highlight
%%comment%%Hidden comment
$E=mc^2$Inline math (LaTeX)
```mermaidDiagram block (syntax in Mermaid)

Properties (front matter) go at the top of a note:

yaml
---
tags: [cheat-sheet, linux]
aliases: [Linux Basics]
created: 2026-11-06
---

For standard Markdown see Markdown.

Shortcuts #

The shortcuts below use Windows/Linux keys; on macOS use Cmd for Ctrl (see MacOS keyboard shortcuts). They can be rebound under Settings > Hotkeys.

SHORTCUTDESCRIPTION
Ctrl+PCommand palette
Ctrl+OQuick switcher (open or create a note)
Ctrl+NNew note
Ctrl+EToggle edit and reading view
Ctrl+Shift+FSearch across the vault
Ctrl+FSearch in the current note
Ctrl+GGraph view
Ctrl+ClickOpen link in a new tab
Ctrl+KInsert a link to a note on the selected text
Ctrl+,Settings

Search Operators #

OPERATORDESCRIPTION
"exact phrase"Exact match
-wordExclude a word
tag:#linuxNotes with a tag
path:kubernetesNotes whose path contains this
file:readmeMatch on file name
line:(a b)Both words on one line
task-todo:Open tasks

Plugins #

Turn on Community plugins under Settings. Popular ones:

PLUGINUSE
DataviewQuery notes like a database
TemplaterAdvanced templates and scripting
Obsidian GitAuto commit, pull and push the vault
CalendarCalendar and daily notes view
TasksTask queries and due dates
ExcalidrawHand-drawn diagrams inside notes

Core plugins (built in) include Daily notes, Templates, Backlinks, Outgoing links, Canvas, Bases and Properties view.

Sync and Backup #

  • Obsidian Sync (paid) is the official end-to-end encrypted sync.
  • Git: the Obsidian Git plugin, or a normal Git repository with a scheduled commit.
  • File sync tools: Syncthing, Nextcloud, iCloud or Dropbox on the vault folder. Do not run two sync tools on the same folder.
  • Back up the whole vault folder, including .obsidian/ if you want your setup kept.

Obsidian vs Similar Tools #

ObsidianLogseqJoplin
StyleDocuments with linksOutliner (every line is a block)Notebooks and notes
StorageMarkdown files in a folderMarkdown or Org files in a folderDatabase, exportable to Markdown
LicenceClosed source, free for personal useOpen source (AGPL)Open source (AGPL)
SyncObsidian Sync (paid) or your ownYour own (Git, file sync); paid Logseq SyncE2EE to Nextcloud, WebDAV, S3, Dropbox, Joplin Server and others
PluginsVery large communityLargeModerate
Best forLinked knowledge base, docsDaily journaling, outlinesPlain notes, web clipper, self-hosted sync

Other tools in the same space: Foam and Dendron (VS Code, see VSCode (Visual Studio Code)), Notable, Standard Notes, Trilium, SiYuan and AFFiNE.

Not Verified #

Commands, shortcuts and plugin names were written from knowledge of the current app and not checked against a fresh install. Licensing terms and pricing change, so check the Obsidian site.

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