Property talk:P4809

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sets environment variable
an environment variable which a software program sets

Represents	environment variable (Q400857)
Data type	Item
Domain	software (Q7397)
Example	cd (Q283438) → PWD (Q47517783) Bourne shell (Q844595) → PWD (Q47517783)
See also	reads environment variable (P4810)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties By value of property Most statements Fewest statements Most sitelinks Most linked wikis Total of sitelinks on items Most identifiers Fewest identifiers Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Database reports/Constraint violations/P4809 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 4 Main statement 2 50% of uses Qualifier 2 50% of uses
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[create Create a translatable help page (preferably in English) for this property to be included here]

Type “software (Q7397)”: item must contain property “instance of (P31)” with classes “software (Q7397)” or their subclasses (defined using subclass of (P279)). (Help)

List of violations of this constraint: Database reports/Constraint violations/P4809#Type Q7397, hourly updated report, SPARQL

Value type “environment variable (Q400857)”: This property should use items as value that contain property “instance of (P31)”. On these, the value for instance of (P31) should be an item that uses subclass of (P279) with value environment variable (Q400857) (or a subclass thereof). (Help)

List of violations of this constraint: Database reports/Constraint violations/P4809#Value type Q400857, hourly updated report, SPARQL

Scope is as main value (Q54828448): the property must be used by specified way only (Help)

List of violations of this constraint: Database reports/Constraint violations/P4809#Scope, hourly updated report, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P4809#Entity types