Command Reference

If you're new to Nushell, the quick tour can show you the most important commands. You don't need to know them all!

To see all commands from inside Nushell, run help commands.

Command	Categories	Description	Feature
abbr	platform	Abbreviations related commands.
abbr list	platform	List all defined abbreviations.
alias	core	Alias a command (with optional flags) to a new name.
all	filters	Test if every element of the input fulfills a predicate expression.
ansi	platform	Output ANSI codes to change color and style of text.
ansi gradient	platform	Add a color gradient (using ANSI color codes) to the given string.
ansi link	platform	Add a link (using OSC 8 escape sequence) to the given string.
ansi strip	platform	Strip ANSI escape sequences from a string.
any	filters	Tests if any element of the input fulfills a predicate expression.
append	filters	Append any number of rows to a table.
ast	debug	Print the abstract syntax tree (ast) for a pipeline.
attr	core	Various attributes for custom commands.
attr category	core	Attribute for adding a category to custom commands.
attr complete	core	Attribute for using another command as a completion source for all arguments.
attr complete external	core	Attribute for enabling use of the external completer for internal commands.
attr deprecated	core	Attribute for marking a command or flag as deprecated.
attr example	core	Attribute for adding examples to custom commands.
attr search-terms	core	Attribute for adding search terms to custom commands.
banner	default	Print a banner for Nushell with information about the project
bits	bits	Various commands for working with bits.
bits and	bits	Performs bitwise and for ints or binary values.
bits not	bits	Performs logical negation on each bit.
bits or	bits	Performs bitwise or for ints or binary values.
bits rol	bits	Bitwise rotate left for ints or binary values.
bits ror	bits	Bitwise rotate right for ints or binary values.
bits shl	bits	Bitwise shift left for ints or binary values.
bits shr	bits	Bitwise shift right for ints or binary values.
bits xor	bits	Performs bitwise xor for ints or binary values.
break	core	Break a loop.
bytes	bytes	Various commands for working with byte data.
bytes add	bytes	Add specified bytes to the binary input.
bytes at	bytes	Get bytes from the input defined by a range.
bytes build	bytes	Create a binary value from the provided arguments.
bytes collect	bytes	Concatenate multiple binary into a single binary, with an optional separator between each.
bytes ends-with	bytes	Check if binary data ends with a pattern.
bytes index-of	bytes	Returns start index of first occurrence of pattern in bytes, or -1 if no match.
bytes length	bytes	Output the length of any bytes in the pipeline.
bytes remove	bytes	Remove specified bytes from the input.
bytes replace	bytes	Find and replace bytes in binary data.
bytes reverse	bytes	Reverse the bytes in the pipeline.
bytes split	bytes	Split input into multiple items using a separator.
bytes starts-with	bytes	Check if binary data starts with a pattern.
cal	generators	Display a calendar.
cd	filesystem	Change the current working directory.
char	strings	Output special characters (e.g., 'newline').
chunk-by	filters	Divides a sequence into sub-sequences based on a closure.
chunks	filters	Divide a list, table or binary input into chunks of `chunk_size`.
clear	platform	Clear the terminal screen.
collect	core	Collect a stream into a value.
columns	filters	Given a record or table, produce a list of its columns' names.
commandline	core	View the current command line input buffer.
commandline edit	core	Modify the current command line input buffer.
commandline get-cursor	core	Get the current cursor position.
commandline set-cursor	core	Set the current cursor position.
compact	filters	Creates a table with non-empty rows.
complete	system	Capture the outputs and exit code from an external piped in command in a nushell table.
config	env	Edit nushell configuration files.
config env	env	Edit nu environment configurations.
config flatten	debug	Show the current configuration in a flattened form.
config nu	env	Edit nu configurations.
config reset	env	Reset nushell environment configurations to default, and saves old config files in the config location as oldconfig.nu and oldenv.nu.
config use-colors	env	Get the configuration for color output.
const	core	Create a parse-time constant.
continue	core	Continue a loop from the next iteration.
cp	filesystem	Copy files using uutils/coreutils cp.
date	date	Date-related commands.
date format	removed	Removed command: use `format date` instead.
date from-human	date	Convert a human readable datetime string to a datetime.
date humanize	date	Print a 'humanized' format for the date, relative to now.
date list-timezone	date	List supported time zones.
date now	date	Get the current date.
date to-timezone	date	Convert a date to a given time zone.
debug	debug	Debug print the value(s) piped in.
debug env	debug	Show environment variables as external commands would get it.
debug experimental-options	debug	Show all experimental options.
debug info	debug	View process memory info.
debug profile	debug	Profile pipeline elements in a closure.
decode	strings	Decode bytes into a string.
decode base32	formats	Decode a Base32-encoded value.
decode base32hex	formats	Encode a base32hex value.
decode base64	formats	Decode a Base64-encoded value.
decode hex	formats	Decode a hex-encoded value.
def	core	Define a custom command.
default	filters	Sets a default value if a row's column is missing or null.
describe	core	Describe the type and structure of the value(s) piped in.
detect	strings	Various commands for detecting things.
detect columns	strings	Attempt to automatically split text into multiple columns.
detect type	strings	Infer Nushell datatype from a string.
do	core	Run a closure, providing it with the pipeline input.
drop	filters	Remove items/rows from the end of the input list/table. Counterpart of `skip`. Opposite of `last`.
drop column	filters	Remove N columns at the right-hand end of the input table. To remove columns by name, use `reject`.
drop nth	filters	Drop the selected rows.
du	filesystem	Find disk usage sizes of specified items.
each	filters	Run a closure on each row of the input list, creating a new list with the results.
each while	filters	Run a closure on each row of the input list until a null is found, then create a new list with the results.
echo	core	Returns its arguments, ignoring the piped-in value.
encode	strings	Encode a string into bytes.
encode base32	formats	Encode a string or binary value using Base32.
encode base32hex	formats	Encode a binary value or a string using base32hex.
encode base64	formats	Encode a string or binary value using Base64.
encode hex	formats	Hex encode a binary value or a string.
enumerate	filters	Enumerate the elements in a stream.
error	core	Various commands for working with errors.
error make	core	Create an error.
every	filters	Show (or skip) every n-th row, starting from the first one.
exec	system	Execute a command, replacing or exiting the current process, depending on platform.
exit	shells	Exit Nu.
explain	debug	Explain closure contents.
explore	viewers	Explore acts as a table pager, just like `less` does for text.
explore config	viewers	Launch a TUI to view and edit the nushell configuration interactively.
explore regex	viewers	Launch a TUI to create and explore regular expressions interactively.
export	core	Export definitions or environment variables from a module.
export alias	core	Alias a command (with optional flags) to a new name and export it from a module.
export const	core	Use parse-time constant from a module and export them from this module.
export def	core	Define a custom command and export it from a module.
export extern	core	Define an extern and export it from a module.
export module	core	Export a custom module from a module.
export use	core	Use definitions from a module and export them from this module.
export-env	env	Run a block and preserve its environment in a current scope.
extern	core	Define a signature for an external command.
fill	conversions	Fill and align text in columns.
filter	filters	Filter values based on a predicate closure.
find	filters	Search for terms in the input data.
first	filters	Return only the first several rows of the input. Counterpart of `last`. Opposite of `skip`.
flatten	filters	Flatten a table by extracting nested values.
for	core	Loop over a range.
format	strings	Various commands for formatting data.
format bits	conversions	Convert value to a string of binary data represented by 0 and 1.
format date	strings	Format a given date using a format string.
format duration	strings	Outputs duration with a specified unit of time.
format filesize	strings	Converts a column of filesizes to some specified format.
format number	conversions	Format a number.
format pattern	strings	Format columns into a string using a simple pattern.
from	formats	Parse a string or binary data into structured data.
from csv	formats	Parse text as .csv and create table.
from eml	formats	Parse text as .eml and create record.
from ics	formats	Parse text as .ics and create table.
from ini	formats	Parse text as .ini and create table.
from json	formats	Convert JSON text into structured data.
from md	formats	Convert markdown text into human-friendly structured rows. Use --verbose for the full AST.
from msgpack	formats	Convert MessagePack data into Nu values.
from msgpackz	formats	Convert brotli-compressed MessagePack data into Nu values.
from nuon	formats	Convert from nuon to structured data.
from ods	formats	Parse OpenDocument Spreadsheet(.ods) data and create table.
from plist	formats	Convert plist to Nushell values
from ssv	formats	Parse text as space-separated values and create a table. The default minimum number of spaces counted as a separator is 2.
from toml	formats	Parse text as .toml and create record.
from tsv	formats	Parse text as .tsv and create table.
from url	formats	Parse url-encoded string as a record.
from vcf	formats	Parse text as .vcf and create table.
from xlsx	formats	Parse binary Excel(.xlsx) data and create table.
from xml	formats	Parse text as .xml and create record.
from yaml	formats	Parse text as .yaml/.yml and create table.
from yml	formats	Parse text as .yaml/.yml and create table.
generate	generators	Generate a list of values by successively invoking a closure.
get	filters	Extract data using a cell path.
glob	filesystem	Creates a list of files and/or folders based on the glob pattern provided.
grid	viewers	Renders the output to a textual terminal grid.
group-by	filters	Splits a list or table into groups, and returns a record containing those groups.
gstat	prompt	Get the git status of a repo
hash	hash	Apply hash function.
hash md5	hash	Hash a value using the md5 hash algorithm.
hash sha256	hash	Hash a value using the sha256 hash algorithm.
headers	filters	Use the first row of the table as column names.
help	core	Display help information about different parts of Nushell.
help aliases	core	Show help on nushell aliases.
help commands	core	Show help on nushell commands.
help escapes	core	Show help on nushell string escapes.
help externs	core	Show help on nushell externs.
help modules	core	Show help on nushell modules.
help operators	core	Show help on nushell operators.
help pipe-and-redirect	core	Show help on nushell pipes and redirects.
hide	core	Hide definitions in the current scope.
hide-env	core	Hide environment variables in the current scope.
histogram	chart	Creates a new table with a histogram based on the column name passed in.
history	history	Get the command history.
history import	history	Import command line history.
history session	history	Get the command history session.
http	network	Various commands for working with http methods.
http delete	network	Delete the specified resource.
http get	network	Fetch the contents from a URL.
http head	network	Get the headers from a URL.
http options	network	Requests permitted communication options for a given URL.
http patch	network	Send a PATCH request to a URL with a request body.
http pool	network	Configure and reset builtin http connection pool.
http post	network	Send a POST request to a URL with a request body.
http put	network	Send a PUT request to a URL with a request body.
idx	filesystem	Manage in-memory file index state.
idx dirs	filesystem	List indexed directories from idx state.
idx drop	filesystem	Drop the current idx runtime from memory.
idx export	filesystem	Persist idx state to disk.
idx files	filesystem	List indexed files, or lookup a specific indexed path.
idx find	filesystem	Search idx with fuzzy matching across files and directories by default.
idx import	filesystem	Import idx state from disk.
idx init	filesystem	Initialize the in-memory idx index for a path.
idx search	filesystem	Search indexed file contents.
idx status	filesystem	Show status information for the global in-memory idx runtime.
if	core	Conditionally run a block.
ignore	core	Ignore the output of the previous command in the pipeline.
inc	default	Increment a value or version. Optionally use the column of a table.
input	platform	Get input from the user via the terminal.
input list	platform	Display an interactive list for user selection.
input listen	platform	Listen for user interface events.
insert	filters	Insert a new column, using an expression or closure to create each row's values.
inspect	debug	Inspect pipeline results while running a pipeline.
interleave	filters	Read multiple streams in parallel and combine them into one stream.
into	conversions	Commands to convert data from one type to another.
into binary	conversions	Convert value to a binary primitive.
into bool	conversions	Convert value to a boolean.
into cell-path	conversions	Convert value to a cell-path.
into datetime	conversions	Convert text or timestamp into a datetime.
into duration	conversions	Convert value to a duration.
into filesize	conversions	Convert value to a filesize.
into float	conversions	Convert data into floating point number.
into glob	conversions	Convert value to a glob pattern.
into int	conversions	Convert value to an integer.
into record	conversions	Convert value to a record.
into sqlite	conversions	Convert table into a SQLite database.
into string	conversions	Convert value to a string.
into value	conversions	Convert custom values into base values.
is-admin	core	Check if nushell is running with administrator or root privileges.
is-empty	filters	Check for empty values.
is-not-empty	filters	Check for non-empty values.
is-terminal	platform	Check if stdin, stdout, or stderr is a terminal.
items	filters	Given a record, iterate on each pair of column name and associated value.
job	experimental	Various commands for working with background jobs.
job describe	experimental	Add a description to a background job.
job flush	experimental	Clear this job's mailbox.
job id	experimental	Get id of current job.
job kill	experimental	Kill a background job.
job list	experimental	List background jobs.
job recv	experimental	Read a message from a job's mailbox.
job send	experimental	Send a message to the mailbox of a job.
job spawn	experimental	Spawn a background job and retrieve its ID.
job unfreeze	experimental	Unfreeze a frozen process job in foreground.
join	filters	Join two tables.
keybindings	platform	Keybindings related commands.
keybindings default	platform	List default keybindings.
keybindings list	platform	List available options that can be used to create keybindings.
keybindings listen	platform	Get input from the user.
kill	platform	Kill a process using its process ID.
last	filters	Return only the last several rows of the input. Counterpart of `first`. Opposite of `drop`.
length	filters	Count the number of items in an input list, rows in a table, or bytes in binary data.
let	core	Create a variable and give it a value.
let-env	removed	`let-env FOO = ...` has been removed, use `$env.FOO = ...` instead.
lines	filters	Converts input to lines.
load-env	filesystem	Loads an environment update from a record.
loop	core	Run a block in a loop.
ls	filesystem	List the filenames, sizes, and modification times of items in a directory.
match	core	Conditionally run a block on a matched value.
math	math	Use mathematical functions as aggregate functions on a list of numbers or tables.
math abs	math	Returns the absolute value of a number.
math arccos	math	Returns the arccosine of the number.
math arccosh	math	Returns the inverse of the hyperbolic cosine function.
math arcsin	math	Returns the arcsine of the number.
math arcsinh	math	Returns the inverse of the hyperbolic sine function.
math arctan	math	Returns the arctangent of the number.
math arctanh	math	Returns the inverse of the hyperbolic tangent function.
math avg	math	Returns the average of a list of numbers.
math ceil	math	Returns the ceil of a number (smallest integer greater than or equal to that number).
math cos	math	Returns the cosine of the number.
math cosh	math	Returns the hyperbolic cosine of the number.
math exp	math	Returns e raised to the power of x.
math floor	math	Returns the floor of a number (largest integer less than or equal to that number).
math ln	math	Returns the natural logarithm. Base: (math e).
math log	math	Returns the logarithm for an arbitrary base.
math max	math	Returns the maximum of a list of values, or of columns in a table.
math median	math	Computes the median of a list of numbers.
math min	math	Finds the minimum within a list of values or tables.
math mode	math	Returns the most frequent element(s) from a list of numbers or tables.
math product	math	Returns the product of a list of numbers or the products of each column of a table.
math round	math	Returns the input number rounded to the specified precision.
math sin	math	Returns the sine of the number.
math sinh	math	Returns the hyperbolic sine of the number.
math sqrt	math	Returns the square root of the input number.
math stddev	math	Returns the standard deviation of a list of numbers, or of each column in a table.
math sum	math	Returns the sum of a list of numbers or of each column in a table.
math tan	math	Returns the tangent of the number.
math tanh	math	Returns the hyperbolic tangent of the number.
math variance	math	Returns the variance of a list of numbers or of each column in a table.
merge	filters	Merge the input with a record or table, overwriting values in matching columns.
merge deep	filters	Merge the input with a record or table, recursively merging values in matching columns.
metadata	debug	Get the metadata for items in the stream.
metadata access	debug	Access the metadata for the input stream within a closure.
metadata set	debug	Set the metadata for items in the stream.
mkdir	filesystem	Create directories, with intermediary directories if required using uutils/coreutils mkdir.
mktemp	filesystem	Create temporary files or directories using uutils/coreutils mktemp.
module	core	Define a custom module.
move	filters	Moves columns relative to other columns or make them the first/last columns. Flags are mutually exclusive.
mut	core	Create a mutable variable and give it a value.
mv	filesystem	Move files or directories using uutils/coreutils mv.
nu-check	strings	Validate and parse Nushell input content.
nu-highlight	strings	Syntax highlight the input string.
open	filesystem	Load a file into a cell, converting to table if possible (avoid by appending '--raw').
overlay	core	Commands for manipulating overlays.
overlay hide	core	Hide an active overlay.
overlay list	core	List all overlays with their active status.
overlay new	core	Create an empty overlay.
overlay use	core	Use definitions from a module as an overlay.
panic	debug	Causes nushell to panic.
par-each	filters	Run a closure on each row of the input list in parallel, creating a new list with the results.
parse	strings	Parse columns from string data using a simple pattern or a supplied regular expression.
path	path	Explore and manipulate paths.
path basename	path	Get the final component of a path.
path dirname	path	Get the parent directory of a path.
path exists	path	Check whether a path exists.
path expand	path	Try to expand a path to its absolute form.
path join	path	Join a structured path or a list of path parts.
path parse	path	Convert a path into structured data.
path relative-to	path	Express a path as relative to another path.
path self	path	Get the absolute path of the script or module containing this command at parse time.
path split	path	Split a path into a list based on the system's path separator.
path type	path	Get the type of the object a path refers to (e.g., file, dir, symlink).
peek	default	Peek the first <n> elements of a stream and store them in the metadata.
plugin	plugin	Commands for managing plugins.
plugin add	plugin	Add a plugin to the plugin registry file.
plugin list	plugin	List loaded and installed plugins.
plugin rm	plugin	Remove a plugin from the plugin registry file.
plugin stop	plugin	Stop an installed plugin if it was running.
plugin use	plugin	Load a plugin from the plugin registry file into scope.
polars	dataframe	Operate with data in a dataframe format.
polars agg	lazyframe	Performs a series of aggregations from a group-by.
polars agg-groups	dataframe	Creates an agg_groups expression.
polars all-false	dataframe	Returns true if all values are false.
polars all-true	dataframe	Returns true if all values are true.
polars append	dataframe	Appends a new dataframe.
polars arg-max	dataframe	Return index for max value in series.
polars arg-min	dataframe	Return index for min value in series.
polars arg-sort	dataframe	Returns indexes for a sorted series.
polars arg-true	dataframe	Returns indexes where values are true.
polars arg-unique	dataframe	Returns indexes for unique values.
polars arg-where	expression	Creates an expression that returns the arguments where expression is true.
polars as	expression	Creates an alias expression.
polars as-date	dataframe	Converts string to date.
polars as-datetime	dataframe	Converts string to datetime.
polars cache	dataframe	Caches operations in a new LazyFrame.
polars cast	dataframe	Cast a column to a different dtype.
polars col	expression	Creates a named column expression.
polars collect	lazyframe	Collect lazy dataframe into eager dataframe.
polars columns	dataframe	Show dataframe columns.
polars concat	dataframe	Concatenate two or more dataframes.
polars concat-str	expression	Creates a concat string expression.
polars contains	dataframe	Checks if a pattern is contained in a string.
polars convert-time-zone	dataframe	Convert datetime to target timezone.
polars count	dataframe	Returns the number of non-null values in the column.
polars count-null	dataframe	Counts null values.
polars cumulative	dataframe	Cumulative calculation for a column or series.
polars cut	dataframe	Bin continuous values into discrete categories for a series.
polars datepart	expression	Creates an expression for capturing the specified datepart in a column.
polars decimal	dataframe	Converts a string column into a decimal column
polars drop	dataframe	Creates a new dataframe by dropping the selected columns.
polars drop-duplicates	dataframe	Drops duplicate values in dataframe.
polars drop-nulls	dataframe	Drops null values in dataframe.
polars dummies	dataframe	Creates a new dataframe with dummy variables.
polars entropy	dataframe	Compute the entropy as `-sum(pk * log(pk))` where `pk` are discrete probabilities.
polars explode	lazyframe	Explodes a dataframe or creates a explode expression.
polars expr-not	dataframe	Creates a not expression.
polars fill-nan	lazyframe	Replaces NaN values with the given expression.
polars fill-null	lazyframe	Replaces NULL values with the given expression.
polars filter	lazyframe	Filter dataframe based in expression.
polars filter-with	dataframe or lazyframe	Filters dataframe using a mask or expression as reference.
polars first	dataframe	Show only the first number of rows or create a first expression
polars flatten	lazyframe	An alias for polars explode.
polars get	dataframe	Creates dataframe with the selected columns.
polars get-day	dataframe	Gets day from date.
polars get-hour	dataframe	Gets hour from datetime.
polars get-minute	dataframe	Gets minute from date.
polars get-month	dataframe	Gets month from date.
polars get-nanosecond	dataframe	Gets nanosecond from date.
polars get-ordinal	dataframe	Gets ordinal from date.
polars get-second	dataframe	Gets second from date.
polars get-week	dataframe	Gets week from date.
polars get-weekday	dataframe	Gets weekday from date.
polars get-year	dataframe	Gets year from date.
polars group-by	lazyframe	Creates a group-by object that can be used for other aggregations.
polars horizontal	expression	Horizontal calculation across multiple columns.
polars implode	dataframe	Aggregates values into a list.
polars integer	dataframe	Converts a string column into a integer column
polars into-df	dataframe	Converts a list, table or record into a dataframe.
polars into-dtype	dataframe	Convert a string to a specific datatype.
polars into-lazy	lazyframe	Converts a dataframe into a lazy dataframe.
polars into-nu	dataframe	Converts a dataframe or an expression into nushell value for access and exploration.
polars into-repr	dataframe	Display a dataframe in its repr format.
polars into-schema	dataframe	Convert a value to a polars schema object
polars is-duplicated	dataframe	Creates mask indicating duplicated values.
polars is-in	expression	Creates an is-in expression or checks to see if the elements are contained in the right series
polars is-not-null	dataframe	Creates mask where value is not null.
polars is-null	dataframe	Creates mask where value is null.
polars is-unique	dataframe	Creates mask indicating unique values.
polars join	lazyframe	Joins a lazy frame with other lazy frame.
polars join-where	lazyframe	Joins a lazy frame with other lazy frame based on conditions.
polars last	dataframe	Creates new dataframe with tail rows or creates a last expression.
polars len	dataframe	Return the number of rows in the context. This is similar to COUNT(*) in SQL.
polars list-contains	dataframe	Checks if an element is contained in a list.
polars lit	expression	Creates a literal expression.
polars lowercase	dataframe	Lowercase the strings in the column.
polars math	dataframe	Collection of math functions to be applied on one or more column expressions
polars max	dataframe	Creates a max expression or aggregates columns to their max value.
polars mean	dataframe	Creates a mean expression for an aggregation or aggregates columns to their mean value.
polars median	lazyframe	Median value from columns in a dataframe or creates expression for an aggregation
polars min	dataframe	Creates a min expression or aggregates columns to their min value.
polars n-unique	dataframe	Counts unique values.
polars not	dataframe	Inverts boolean mask.
polars open	dataframe	Opens CSV, JSON, NDJSON/JSON lines, arrow, avro, or parquet file to create dataframe. A lazy dataframe will be created by default, if supported.
polars otherwise	expression	Completes a when expression.
polars over	lazyframe	Compute expressions over a window group defined by partition expressions.
polars pivot	dataframe	Pivot a DataFrame from long to wide format.
polars profile	dataframe	Profile a lazy dataframe.
polars qcut	dataframe	Bin continuous values into discrete categories based on their quantiles for a series.
polars quantile	lazyframe	Aggregates the columns to the selected quantile.
polars query	dataframe	Query dataframe using SQL. Note: The dataframe is always named 'df' in your query's from clause.
polars rename	dataframe or lazyframe	Rename a dataframe column.
polars replace	expression	Create an expression that replaces old values with new values
polars replace-time-zone	dataframe	Replace the timezone information in a datetime column.
polars reverse	dataframe	Reverses the LazyFrame
polars rolling	dataframe	Rolling calculation for a series.
polars sample	dataframe	Create sample dataframe.
polars save	lazyframe	Saves a dataframe to disk. For lazy dataframes a sink operation will be used if the file type supports it (parquet, ipc/arrow, csv, and ndjson).
polars schema	dataframe	Show schema for a dataframe.
polars select	lazyframe	Selects columns from lazyframe.
polars selector	expression	Create column selectors for use in polars commands.
polars selector all	expression	Creates a selector that selects all columns.
polars selector alpha	expression	Select all columns with alphabetic names (eg: only letters). Matching column names cannot contain *any* non-alphabetic characters. Note that the definition of "alphabetic" consists of all valid Unicode alphabetic characters by default; this can be changed by setting `--ascii-only`.
polars selector alphanumeric	expression	Select all columns with alphanumeric names (eg: only letters). Matching column names cannot contain *any* non-alphanumeric characters. Note that the definition of "alphanumeric" consists of all valid Unicode alphanumeric characters by default; this can be changed by setting `ascii_only=true`.
polars selector array	expression	Select all array columns. Optionally filter by fixed width.
polars selector binary	expression	Select all binary columns.
polars selector boolean	expression	Select all boolean columns.
polars selector by-dtype	expression	Creates a selector that selects columns by data type.
polars selector by-index	expression	Select columns by their index position. Supports negative indices (e.g., -1 for the last column).
polars selector by-name	expression	Creates a selector that selects columns by name.
polars selector categorical	expression	Select all categorical columns.
polars selector contains	expression	Select columns whose names contain the given literal substring(s).
polars selector date	expression	Select all date columns.
polars selector datetime	expression	Select all datetime columns. Optionally filter by time unit (ns, us, ms) and/or timezone.
polars selector decimal	expression	Select all decimal columns.
polars selector digit	expression	Select columns whose names consist entirely of digit characters. By default uses Unicode decimal digits; use `--ascii-only` to restrict to ASCII 0-9.
polars selector duration	expression	Select all duration columns. Optionally filter by time unit (ns, us, ms).
polars selector empty	expression	Create an empty selector that matches no columns. Useful as a base for selector composition.
polars selector ends-with	expression	Select columns that end with the given substring(s).
polars selector enum	expression	Select all enum columns.
polars selector exclude	expression	Select all columns except those with the given name(s). This is the inverse of `polars selector by-name`.
polars selector first	expression	Creates a selector that selects the first column(s) by index.
polars selector float	expression	Select all float columns.
polars selector integer	expression	Select all integer columns.
polars selector last	expression	Creates a selector that selects the last column(s) by index.
polars selector list	expression	Select all list columns.
polars selector matches	expression	Select all columns that match the given regex pattern.
polars selector nested	expression	Select all nested columns (list, array, or struct).
polars selector not	expression	Inverts selector.
polars selector numeric	expression	Select all numeric columns.
polars selector object	expression	Select all object columns.
polars selector signed-integer	expression	Select all signed integer columns.
polars selector starts-with	expression	Select columns that start with the given substring(s).
polars selector string	expression	Select all string columns. Use `--include-categorical` to also select categorical columns.
polars selector struct	expression	Select all struct columns.
polars selector temporal	expression	Select all temporal columns (date, datetime, duration, and time).
polars selector unsigned-integer	expression	Select all unsigned integer columns.
polars set	dataframe	Sets value where given mask is true.
polars set-with-idx	dataframe	Sets value in the given index.
polars shape	dataframe	Shows column and row size for a dataframe.
polars shift	dataframe or lazyframe	Shifts the values by a given period.
polars slice	dataframe	Creates new dataframe from a slice of rows.
polars sort-by	lazyframe	Sorts a lazy dataframe based on expression(s).
polars std	dataframe	Creates a std expression for an aggregation of std value from columns in a dataframe.
polars store-get	dataframe	Gets a Dataframe or other object from the plugin cache.
polars store-ls	dataframe	Lists stored polars objects.
polars store-rm	dataframe	Removes a stored Dataframe or other object from the plugin cache.
polars str-join	dataframe	Concatenates strings within a column or dataframes
polars str-lengths	dataframe	Get lengths of all strings.
polars str-replace	dataframe	Replace the leftmost (sub)string by a regex pattern.
polars str-replace-all	dataframe	Replace all (sub)strings by a regex pattern.
polars str-slice	dataframe	Slices the string from the start position until the selected length.
polars str-split	dataframe	Split the string by a substring. The resulting dtype is list<str>.
polars str-strip-chars	dataframe	Strips specified characters from strings in a column
polars strftime	dataframe	Formats date based on string rule.
polars struct-json-encode	dataframe	Convert this struct to a string column with json values.
polars sum	dataframe	Creates a sum expression for an aggregation or aggregates columns to their sum value.
polars summary	dataframe	For a dataframe, produces descriptive statistics (summary statistics) for its numeric columns.
polars take	dataframe	Creates new dataframe using the given indices.
polars truncate	expression	Divide the date/datetime range into buckets.
polars unique	dataframe or lazyframe	Returns unique values from a dataframe.
polars unnest	dataframe	Decompose struct columns into separate columns for each of their fields. The new columns will be inserted into the dataframe at the location of the struct column.
polars unpivot	dataframe	Unpivot a DataFrame from wide to long format.
polars uppercase	dataframe	Uppercase the strings in the column.
polars value-counts	dataframe	Returns a dataframe with the counts for unique values in series.
polars var	dataframe	Create a var expression for an aggregation.
polars when	expression	Creates and modifies a when expression.
polars with-column	dataframe or lazyframe	Adds a series to the dataframe.
port	network	Get a free TCP port from system.
prepend	filters	Prepend any number of rows to a table.
print	strings	Print the given values to stdout.
ps	system	View information about system processes.
pwd	default	Return the current working directory
query	filters	Show all the query commands
query db	database	Query a SQLite database with SQL statements.
query json	filters	execute json query on json file (open --raw <file> | query json 'query string')
query web	network	execute selector query on html/web
query webpage-info	network	uses the webpage crate to extract info from html: title, description, language, links, RSS feeds, Opengraph, Schema.org, and more
query xml	filters	Execute XPath 1.0 query on XML input
random	random	Generate a random value.
random binary	random	Generate random bytes.
random bool	random	Generate a random boolean value.
random chars	random	Generate random chars uniformly distributed over ASCII letters and numbers: a-z, A-Z and 0-9.
random float	random	Generate a random float within a range [min..max].
random int	random	Generate a random integer [min..max].
random uuid	random	Generate a random uuid string of the specified version.
reduce	filters	Aggregate a list (starting from the left) to a single value using an accumulator closure.
registry	system	Various commands for interacting with the system registry (Windows only).
registry query	system	Query the Windows registry.
reject	filters	Remove the given columns or rows from the table. Opposite of `select`.
rename	filters	Creates a new table with columns renamed.
return	core	Return early from a custom command.
reverse	filters	Reverses the input list or table.
rm	filesystem	Remove files and directories.
roll	filters	Rolling commands for tables.
roll down	filters	Roll table rows down.
roll left	filters	Roll record or table columns left.
roll right	filters	Roll table columns right.
roll up	filters	Roll table rows up.
rotate	filters	Rotates a table or record clockwise (default) or counter-clockwise (use --ccw flag).
run-external	system	Runs external command.
run-internal	default	Run a built-in command by name. Used internally by `%($cmd)` dynamic dispatch.
save	filesystem	Save a file.
schema	database	Show the schema of a SQLite database.
scope	core	Commands for getting info about what is in scope.
scope aliases	core	Output info on the aliases in the current scope.
scope commands	core	Output info on the commands in the current scope.
scope engine-stats	core	Output stats on the engine in the current state.
scope externs	core	Output info on the known externals in the current scope.
scope modules	core	Output info on the modules in the current scope.
scope variables	core	Output info on the variables in the current scope.
select	filters	Select only these columns or rows from the input. Opposite of `reject`.
seq	generators	Output sequences of numbers.
seq char	generators	Print a sequence of ASCII characters.
seq date	generators	Print sequences of dates.
shuffle	filters	Shuffle rows randomly.
skip	filters	Skip the first several rows of the input. Counterpart of `drop`. Opposite of `first`.
skip until	filters	Skip elements of the input until a predicate is true.
skip while	filters	Skip elements of the input while a predicate is true.
sleep	platform	Delay for a specified amount of time.
slice	filters	Return only the selected rows.
sort	filters	Sort the input in increasing order.
sort-by	filters	Sort by the given cell path or closure.
source	core	Runs a script file in the current context.
source-env	core	Source the environment from a source file into the current environment.
split	strings	Split contents across desired subcommand (like row, column) via the separator.
split cell-path	conversions	Split a cell-path into its components.
split chars	strings	Split a string into a list of characters.
split column	strings	Split a string into multiple columns using a separator.
split list	filters	Split a list into multiple lists using a separator.
split row	strings	Split a string into multiple rows using a separator.
split words	strings	Split a string's words into separate rows.
start	filesystem	Open a folder, file, or website in the default application or viewer.
stor	database	Various commands for working with the in-memory sqlite database.
stor create	database	Create a table in the in-memory sqlite database.
stor delete	database	Delete a table or specified rows in the in-memory sqlite database.
stor export	database	Export the in-memory sqlite database to a sqlite database file.
stor import	database	Import a sqlite database file into the in-memory sqlite database.
stor insert	database	Insert information into a specified table in the in-memory sqlite database.
stor open	database	Opens the in-memory sqlite database.
stor reset	database	Reset the in-memory database by dropping all tables.
stor update	database	Update information in a specified table in the in-memory sqlite database.
str	strings	Various commands for working with string data.
str camel-case	strings	Convert a string to camelCase.
str capitalize	strings	Capitalize the first letter of text.
str contains	strings	Checks if string input contains a substring.
str distance	strings	Compare two strings and return the edit distance/Levenshtein distance.
str downcase	strings	Convert text to lowercase.
str ends-with	strings	Check if an input ends with a string.
str escape-regex	strings	Escapes special characters in the input string with '\'.
str expand	strings	Generates all possible combinations defined in brace expansion syntax.
str index-of	strings	Returns start index of first occurrence of string in input, or -1 if no match.
str join	strings	Concatenate multiple strings into a single string, with an optional separator between each.
str kebab-case	strings	Convert a string to kebab-case.
str length	strings	Output the length of any strings in the pipeline.
str pascal-case	strings	Convert a string to PascalCase.
str replace	strings	Find and replace text in the input string.
str reverse	strings	Reverse every string in the pipeline.
str screaming-snake-case	strings	Convert a string to SCREAMING_SNAKE_CASE.
str snake-case	strings	Convert a string to snake_case.
str starts-with	strings	Check if an input starts with a string.
str stats	strings	Gather word count statistics on the text.
str substring	strings	Get part of a string. Note that the first character of a string is index 0.
str title-case	strings	Convert a string to Title Case.
str trim	strings	Trim whitespace or specific character.
str upcase	strings	Convert text to uppercase.
sys	system	View information about the system.
sys cpu	system	View information about the system CPUs.
sys disks	system	View information about the system disks.
sys host	system	View information about the system host.
sys mem	system	View information about the system memory.
sys net	system	View information about the system network interfaces.
sys temp	system	View the temperatures of system components.
sys users	system	View information about the users on the system.
table	viewers	Render the table.
take	filters	Take only the first n elements of a list, or the first n bytes of a binary value.
take until	filters	Take elements of the input until a predicate is true.
take while	filters	Take elements of the input while a predicate is true.
tee	filters	Copy a stream to another command in parallel.
term	platform	Commands for querying information about the terminal.
term query	platform	Query the terminal for information.
term size	platform	Returns a record containing the number of columns (width) and rows (height) of the terminal.
timeit	debug	Time how long it takes a closure to run.
to	formats	Translate structured data to various formats.
to csv	formats	Convert table into .csv text .
to html	formats	Convert table into simple HTML.
to json	formats	Converts table data into JSON text.
to md	formats	Convert table into simple Markdown.
to msgpack	formats	Convert Nu values into MessagePack.
to msgpackz	formats	Convert Nu values into brotli-compressed MessagePack.
to nuon	formats	Converts table data into Nuon (Nushell Object Notation) text.
to plist	formats	Convert Nu values into plist
to text	formats	Convert data into plain text format.
to toml	formats	Convert record into .toml text.
to tsv	formats	Convert table into .tsv text.
to xml	formats	Convert special record structure into .xml text.
to yaml	formats	Convert table into .yaml/.yml text.
to yml	formats	Convert table into .yaml/.yml text.
touch	filesystem	Creates one or more files.
transpose	filters	Transposes the table contents so rows become columns and columns become rows.
try	core	Try to run a block, if it fails optionally run a catch closure.
tutor	misc	Run the tutorial. To begin, run: tutor.
ulimit	platform	Set or get resource usage limits.
umask	platform	Get or set default file creation permissions.
uname	system	Print certain system information using uutils/coreutils uname.
uniq	filters	Return the distinct values in the input.
uniq-by	filters	Return the distinct values in the input by the given column(s).
unlet	experimental	Delete variables from nushell memory, making them unrecoverable.
update	filters	Update an existing column to have a new value.
update cells	filters	Update the table cells.
upsert	filters	Update an existing column to have a new value, or insert a new column.
url	network	Various commands for working with URLs.
url build-query	network	Converts record or table into query string applying percent-encoding.
url decode	strings	Converts a percent-encoded web safe string to a string.
url encode	strings	Converts a string to a percent encoded web safe string.
url join	network	Convert a record to a URL string.
url parse	network	Parse a URL string into structured data.
url split-query	network	Converts query string into table applying percent-decoding.
use	core	Use definitions from a module, making them available in your shell.
values	filters	Given a record or table, produce a list of its columns' values.
version	core	Display Nu version, and its build configuration.
version check	platform	Checks to see if you have the latest version of nushell.
view	debug	Various commands for viewing debug information.
view blocks	debug	View the blocks registered in nushell's EngineState memory.
view files	debug	View the files registered in nushell's EngineState memory.
view ir	debug	View the compiled IR code for a block of code.
view source	debug	View a block, module, or a definition.
view span	debug	View the contents of a span.
watch	filesystem	Watch for file changes and execute Nu code when they happen.
where	filters	Filter values of an input list based on a condition.
which	system	Finds a program file, alias or custom command. If `application` is not provided, all deduplicated commands will be returned.
while	core	Conditionally run a block in a loop.
whoami	platform	Get the current username using uutils/coreutils whoami.
window	filters	Creates a sliding window of `window_size` that slide by n rows/elements across input.
with-env	env	Runs a block with an environment variable set.
wrap	filters	Wrap the value into a column.
zip	filters	Combine a stream with the input.