roll left for filters
Roll record or table columns left.
Signature
> roll left {flags}
Flags
-
--by, -b {int}: Number of columns to roll. -
--cells-only, -c: Rotates columns leaving headers fixed.
Input/output types:
| input | output |
|---|---|
| record | record |
| table | table |
Examples
Rolls columns of a record to the left
> {a:1 b:2 c:3} | roll left
╭───┬───╮
│ b │ 2 │
│ c │ 3 │
│ a │ 1 │
╰───┴───╯Rolls columns of a table to the left
> [[a b c]; [1 2 3] [4 5 6]] | roll left ╭───┬───┬───┬───╮ │ # │ b │ c │ a │ ├───┼───┼───┼───┤ │ 0 │ 2 │ 3 │ 1 │ │ 1 │ 5 │ 6 │ 4 │ ╰───┴───┴───┴───╯
Rolls columns to the left without changing column names
> [[a b c]; [1 2 3] [4 5 6]] | roll left --cells-only ╭───┬───┬───┬───╮ │ # │ a │ b │ c │ ├───┼───┼───┼───┤ │ 0 │ 2 │ 3 │ 1 │ │ 1 │ 5 │ 6 │ 4 │ ╰───┴───┴───┴───╯
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https://www.nushell.sh/commands/docs/roll_left.html
