CDUP
E845077
CDUP is an FTP command that changes the working directory to the parent directory on the remote server.
All labels observed (1)
| Label | Occurrences |
|---|---|
| CDUP canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T10157812 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: CDUP Context triple: [RFC 959, definesCommand, CDUP]
-
A.
Cd
Cd is an abbreviation used for a series of British government Command Papers published in the early 20th century.
-
B.
Up&Up
"Up&Up" is an anthemic, uplifting track by Coldplay that serves as the closing song on their album *A Head Full of Dreams*, known for its hopeful lyrics and expansive, cinematic sound.
-
C.
Drive Back
Drive Back is a song featured on the soundtrack of the 2006 racing video game "Zuma."
-
D.
Music Concourse
Music Concourse is a historic open-air plaza and performance space in San Francisco’s Golden Gate Park, known for its band shell, fountains, and surrounding cultural institutions.
-
E.
Up n' Down
"Up n' Down" is a song featured on the album *Femme Fatale* by American pop singer Britney Spears.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: CDUP Target entity description: CDUP is an FTP command that changes the working directory to the parent directory on the remote server.
-
A.
Cd
Cd is an abbreviation used for a series of British government Command Papers published in the early 20th century.
-
B.
Up&Up
"Up&Up" is an anthemic, uplifting track by Coldplay that serves as the closing song on their album *A Head Full of Dreams*, known for its hopeful lyrics and expansive, cinematic sound.
-
C.
Drive Back
Drive Back is a song featured on the soundtrack of the 2006 racing video game "Zuma."
-
D.
Music Concourse
Music Concourse is a historic open-air plaza and performance space in San Francisco’s Golden Gate Park, known for its band shell, fountains, and surrounding cultural institutions.
-
E.
Up n' Down
"Up n' Down" is a song featured on the album *Femme Fatale* by American pop singer Britney Spears.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf | FTP command ⓘ |
| abbreviationFor | Change Directory UP ⓘ |
| belongsTo | FTP control connection ⓘ |
| caseSensitivity | case-insensitive in FTP protocol ⓘ |
| category | FTP access control command ⓘ |
| defaultControlPort | 21 ⓘ |
| definedIn |
File Transfer Protocol
ⓘ
linked to:
FTP
|
| definedInRFC | RFC 959 ⓘ |
| direction | server-side command ⓘ |
| effectOnPath | moves one level up in directory hierarchy ⓘ |
| errorCondition |
command not implemented by server
ⓘ
parent directory not accessible ⓘ user not logged in ⓘ |
| fullName | Change to Parent Directory ⓘ |
| hasParameter | no parameters ⓘ |
| hasSecurityConsideration | may reveal directory structure if misconfigured ⓘ |
| implementation | supported by most FTP servers ⓘ |
| introducedIn | original FTP specification ⓘ |
| isPartOf | FTP command set ⓘ |
| isSafeForDataConnection | does not directly affect data connection ⓘ |
| isTextCommand | true ⓘ |
| operatesIn | control channel ⓘ |
| operatesOn | remote server working directory ⓘ |
| protocol | FTP ⓘ |
| purpose | change working directory to parent directory ⓘ |
| requiresAuthentication | true ⓘ |
| requiresLoginState | logged-in state ⓘ |
| requiresPermission | access to parent directory ⓘ |
| responseCodeOnFailure |
500
ⓘ
501 ⓘ 502 ⓘ 530 ⓘ 550 ⓘ |
| responseCodeOnSuccess |
200
ⓘ
250 ⓘ |
| scope | current FTP session ⓘ |
| similarTo | CWD .. ⓘ |
| standardizedBy |
IETF
ⓘ
linked to:
Internet Engineering Task Force
|
| syntax | CDUP ⓘ |
| transportLayerProtocol |
TCP
ⓘ
linked to:
Transmission Control Protocol
|
| usedBy | FTP clients ⓘ |
| usedIn |
automated FTP scripts
ⓘ
interactive FTP sessions ⓘ |
| usedWith |
CWD
ⓘ
LIST ⓘ PWD ⓘ |
| 作用 |
change current directory on remote FTP server
ⓘ
navigate to parent directory on remote host ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: CDUP Description of subject: CDUP is an FTP command that changes the working directory to the parent directory on the remote server.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.