System Metadata Keys

These metadata keys are available in all projects automatically. System keys are always preceded by the underscore character _.

Systems keys are not indented to be assigned, but rather to use for node dynamic node selection, sorting, and output.

_contents
Refers to a node’s text contents. Can be used for full text search or comparison. Comparisons are case-insensitive

Example:

[[
…
INCLUDE(_contents ? Western Civilization)
…
]]
Includes any node containining the text “Western Civilization”
_inline_timestamp
Retrieves all inline timestamps in the node, if any. Does not include timestamps in keyed metadata.
Example:
[[
…
SHOW($title – $_inline_timestamp\n)
…
]]

_links_from
Specifies all nodes linked from the given node
Example:
[[
…
INCLUDE(_links_from = | some node >)
…
]]

_links_to

Includes all nodes that contain links to the provided node

Example: 

[[
…
INCLUDE(_links_to = | some node >)
…
]]
_newest_timestamp

Refers to the newest-dated inline timestamp in the node (does not include timestamps in keyed metadata)

Example:

[[
…
SHOW($title – $_newest_timestamp\n)
…
]]

_oldest_timestamp

Refers to the oldest-dated inline timestamp in the node (does not include timestamps in keyed metadata)

Example:

[[
…
SHOW($title – $_oldest_timestamp\n)
…
]]