dd
E299159
dd is a Unix command-line utility used to convert and copy raw data at a low level, often for tasks like disk imaging and backup.
All labels observed (1)
| Label | Occurrences |
|---|---|
| dd canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2792283 — 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: dd Context triple: [GNU Core Utilities, contains, dd]
-
A.
DD
DD is the official vehicle registration code assigned to the Indian union territory of Dadra and Nagar Haveli and Daman and Diu.
-
B.
DD
DD is the stock ticker symbol for DuPont, a major American chemicals and materials company known for innovations such as nylon, Kevlar, and Teflon.
-
C.
DD
DD is the vehicle registration code used on license plates for the German city of Dresden.
-
D.
DiDi
DiDi is a major Chinese ride-hailing and mobility technology company that operates a platform for on-demand transportation and related services.
-
E.
DiDi
DiDi is an American professional basketball player known for her defensive prowess and collegiate success with the Baylor Lady Bears.
- 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: dd Target entity description: dd is a Unix command-line utility used to convert and copy raw data at a low level, often for tasks like disk imaging and backup.
-
A.
DD
DD is the official vehicle registration code assigned to the Indian union territory of Dadra and Nagar Haveli and Daman and Diu.
-
B.
DD
DD is the stock ticker symbol for DuPont, a major American chemicals and materials company known for innovations such as nylon, Kevlar, and Teflon.
-
C.
DD
DD is the vehicle registration code used on license plates for the German city of Dresden.
-
D.
DiDi
DiDi is a major Chinese ride-hailing and mobility technology company that operates a platform for on-demand transportation and related services.
-
E.
DiDi
DiDi is an American professional basketball player known for her defensive prowess and collegiate success with the Baylor Lady Bears.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Unix command
ⓘ
command-line utility ⓘ data copying tool ⓘ |
| canReadFrom |
block devices
ⓘ
regular files ⓘ |
| canWriteTo |
block devices
ⓘ
regular files ⓘ |
| commonlyUsedWith |
/dev/null
ⓘ
/dev/random ⓘ /dev/sdX devices ⓘ /dev/urandom ⓘ /dev/zero ⓘ |
| dataUnit |
blocks
ⓘ
bytes ⓘ |
| feature |
can continue from an offset
ⓘ
can limit number of blocks copied ⓘ can show transfer statistics ⓘ |
| inputSpecifier | if ⓘ |
| introducedIn | early Unix systems ⓘ |
| nameOrigin | inspired by IBM JCL DD (Data Definition) statements ⓘ |
| operatingSystem |
BSD
ⓘ
Linux ⓘ Unix ⓘ Unix-like systems ⓘ macOS ⓘ |
| option |
bs
ⓘ
conv ⓘ count ⓘ seek ⓘ skip ⓘ |
| outputSpecifier | of ⓘ |
| primaryFunction |
convert raw data
ⓘ
copy raw data ⓘ perform low-level data copying ⓘ |
| risk |
can overwrite data irreversibly
ⓘ
requires careful specification of input and output ⓘ |
| supportsOperation |
block-level copying
ⓘ
byte swapping ⓘ changing block size ⓘ data conversion ⓘ sparse file creation ⓘ |
| typicalUse |
cloning disks
ⓘ
copying partitions ⓘ creating bootable media ⓘ disk backup ⓘ disk imaging ⓘ writing disk images to devices ⓘ |
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: dd Description of subject: dd is a Unix command-line utility used to convert and copy raw data at a low level, often for tasks like disk imaging and backup.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.