| all | Test if every element of the input fulfills a predicate expression.
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| any | Tests if any element of the input fulfills a predicate expression.
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| append | Append any number of rows to a table.
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| chunk-by | Divides a sequence into sub-sequences based on a closure.
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| chunks | Divide a list, table or binary input into chunks of `chunk_size`.
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| collect | Collect a stream into a value.
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| columns | Given a record or table, produce a list of its columns' names.
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| compact | Creates a table with non-empty rows.
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| default | Sets a default value if a row's column is missing or null.
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| drop | Remove items/rows from the end of the input list/table. Counterpart of `skip`. Opposite of `last`.
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| drop column | Remove N columns at the right-hand end of the input table. To remove columns by name, use `reject`.
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| drop nth | Drop the selected rows.
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| each | Run a closure on each row of the input list, creating a new list with the results.
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| each while | Run a closure on each row of the input list until a null is found, then create a new list with the results.
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| enumerate | Enumerate the elements in a stream.
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| every | Show (or skip) every n-th row, starting from the first one.
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| filter | Filter values based on a predicate closure.
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| find | Searches terms in the input.
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| first | Return only the first several rows of the input. Counterpart of `last`. Opposite of `skip`.
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| flatten | Flatten the table.
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| get | Extract data using a cell path.
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| group-by | Splits a list or table into groups, and returns a record containing those groups.
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| headers | Use the first row of the table as column names.
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| insert | Insert a new column, using an expression or closure to create each row's values.
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| interleave | Read multiple streams in parallel and combine them into one stream.
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| into value | Infer Nushell datatype for each cell.
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| is-empty | Check for empty values.
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| is-not-empty | Check for non-empty values.
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| items | Given a record, iterate on each pair of column name and associated value.
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| join | Join two tables.
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| last | Return only the last several rows of the input. Counterpart of `first`. Opposite of `drop`.
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| length | Count the number of items in an input list, rows in a table, or bytes in binary data.
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| lines | Converts input to lines.
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| merge | Merge the input with a record or table, overwriting values in matching columns.
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| merge deep | Merge the input with a record or table, recursively merging values in matching columns.
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| move | Moves columns relative to other columns or make them the first/last columns. Flags are mutually exclusive.
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| par-each | Run a closure on each row of the input list in parallel, creating a new list with the results.
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| prepend | Prepend any number of rows to a table.
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| query | Show all the query commands
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| query json | execute json query on json file (open --raw <file> | query json 'query string')
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| query xml | execute xpath query on xml
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| reduce | Aggregate a list (starting from the left) to a single value using an accumulator closure.
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| reject | Remove the given columns or rows from the table. Opposite of `select`.
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| rename | Creates a new table with columns renamed.
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| reverse | Reverses the input list or table.
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| roll | Rolling commands for tables.
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| roll down | Roll table rows down.
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| roll left | Roll record or table columns left.
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| roll right | Roll table columns right.
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| roll up | Roll table rows up.
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| rotate | Rotates a table or record clockwise (default) or counter-clockwise (use --ccw flag).
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| select | Select only these columns or rows from the input. Opposite of `reject`.
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| shuffle | Shuffle rows randomly.
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| skip | Skip the first several rows of the input. Counterpart of `drop`. Opposite of `first`.
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| skip until | Skip elements of the input until a predicate is true.
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| skip while | Skip elements of the input while a predicate is true.
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| slice | Return only the selected rows.
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| sort | Sort in increasing order.
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| sort-by | Sort by the given cell path or closure.
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| split list | Split a list into multiple lists using a separator.
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| take | Take only the first n elements of a list, or the first n bytes of a binary value.
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| take until | Take elements of the input until a predicate is true.
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| take while | Take elements of the input while a predicate is true.
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| tee | Copy a stream to another command in parallel.
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| transpose | Transposes the table contents so rows become columns and columns become rows.
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| uniq | Return the distinct values in the input.
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| uniq-by | Return the distinct values in the input by the given column(s).
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| update | Update an existing column to have a new value.
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| update cells | Update the table cells.
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| upsert | Update an existing column to have a new value, or insert a new column.
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| values | Given a record or table, produce a list of its columns' values.
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| where | Filter values based on a row condition.
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| window | Creates a sliding window of `window_size` that slide by n rows/elements across input.
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| wrap | Wrap the value into a column.
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| zip | Combine a stream with the input.
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