mirror of
https://github.com/nushell/nushell.git
synced 2024-11-15 04:54:46 +01:00
f37f29b441
* start playing with ways to use the uniq command * WIP * Got uniq working, but still need to figure out args issue and add tests * Add some tests for uniq * fmt * remove commented out code * Add documentation and some additional tests showing uniq values and rows. Also removed args TODO * add changes that didn't get committed * whoops, I didn't save the docs correctly... * fmt * Add a test for uniq with nested json * Add another test * Fix unique-ness when json keys are out of order and make the test json more complicated
37 lines
1.1 KiB
Rust
37 lines
1.1 KiB
Rust
# uniq
|
|
|
|
Returns unique rows or values from a dataset.
|
|
|
|
## Examples
|
|
|
|
Given a file `test.csv`
|
|
|
|
```
|
|
first_name,last_name,rusty_at,type
|
|
Andrés,Robalino,10/11/2013,A
|
|
Andrés,Robalino,10/11/2013,A
|
|
Jonathan,Turner,10/12/2013,B
|
|
Yehuda,Katz,10/11/2013,A
|
|
```
|
|
|
|
```
|
|
> `open test.csv | uniq`
|
|
━━━┯━━━━━━━━━━━━┯━━━━━━━━━━━┯━━━━━━━━━━━━┯━━━━━━
|
|
# │ first_name │ last_name │ rusty_at │ type
|
|
───┼────────────┼───────────┼────────────┼──────
|
|
0 │ Andrés │ Robalino │ 10/11/2013 │ A
|
|
1 │ Jonathan │ Turner │ 10/12/2013 │ B
|
|
2 │ Yehuda │ Katz │ 10/11/2013 │ A
|
|
━━━┷━━━━━━━━━━━━┷━━━━━━━━━━━┷━━━━━━━━━━━━┷━━━━━━
|
|
```
|
|
|
|
```
|
|
> `open test.csv | get type | uniq`
|
|
━━━┯━━━━━━━━━
|
|
# │ <value>
|
|
───┼─────────
|
|
0 │ A
|
|
1 │ B
|
|
━━━┷━━━━━━━━━
|
|
```
|