roll left for filters

Signature

> roll left {flags}

Flags

• --by, -b {int}: Number of columns to roll
• --cells-only, -c: rotates columns leaving headers fixed

Input/output types:

Examples

Rolls columns of a record to the left

> {a:1b:2c:3} |roll left
╭───┬───╮
│b│2│
│c│3│
│a│1│
╰───┴───╯

Rolls columns of a table to the left

> [[abc]; [123] [456]] |roll left
╭───┬───┬───┬───╮
│# │ b │ c │ a │
├───┼───┼───┼───┤
│0│2│3│1│
│1│5│6│4│
╰───┴───┴───┴───╯

Rolls columns to the left without changing column names

> [[abc]; [123] [456]] |roll left--cells-only
╭───┬───┬───┬───╮
│# │ a │ b │ c │
├───┼───┼───┼───┤
│0│2│3│1│
│1│5│6│4│
╰───┴───┴───┴───╯

Tips: Command roll left was not included in the official binaries by default, you have to build it with --features=extra flag