Change Wikilinks in YAML Frontmatter from the Breadcrumbs style to the new Obsidian Metadata Style

metadata-refactor.sh

# macOS
cd "path/to/your/vault"
awk 'FNR <= 1 && /^---$/{print FILENAME}' **/*.md | 
  xargs -I {} sed -i '' -E '1,/^---$/ s/(\[\[.*]])/"\1"/g' "{}"
  
# Linux (or macOS users with GNU sed)
cd "path/to/your/vault"
awk 'FNR <= 1 && /^---$/{print FILENAME}' **/*.md | 
  xargs -I {} sed -i -E '1,/^---$/ s/(\[\[.*]])/"\1"/g' "{}"
 

what-changes.md

ℹ️ This operation is mostly relevant for Breadcrumbs users, who have wikilinks in their yaml frontmatter that needs to be converted to quoted wikilinks for Obsidian 1.4

• The awk command ensures that only files that have frontmatter are affected.
• The sed command is restricted to apply the change only to wikilinks in the frontmatter, not elsewhere.
• The command works fine in my vault, but I haven't tested it elsewhere, so please make backups before. (If you use git, use git diff afterwards to check all changes.)

---
parent: [[My Note]]
children:
- [[Other Note]]
---

[[My Note]]

Only the wikilinks in the frontmatter are affected:

---
parent: "[[My Note]]"
children:
- "[[Other Note]]"
---

[[My Note]]