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
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.
bits	bits	Various commands for working with bits.
bits and	bits	Performs bitwise and for integers.
bits not	bits	Performs logical negation on each bit.
bits or	bits	Performs bitwise or for integers.
bits rol	bits	Bitwise rotate left for integers.
bits ror	bits	Bitwise rotate right for integers.
bits shl	bits	Bitwise shift left for integers.
bits shr	bits	Bitwise shift right for integers.
bits xor	bits	Performs bitwise xor for integers.
break	core	Break a loop.
bytes	bytes	Various commands for working with byte data.
bytes add	bytes	Add specified bytes to the input.
bytes at	bytes	Get bytes defined by a range
bytes build	bytes	Create bytes from the arguments.
bytes collect	bytes	Concatenate multiple binary into a single binary, with an optional separator between each.
bytes ends-with	bytes	Check if bytes 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 bytes.
bytes replace	bytes	Find and replace binary.
bytes reverse	bytes	Reverse the bytes in the pipeline.
bytes starts-with	bytes	Check if bytes starts with a pattern.
cal	generators	Display a calendar.
cd	filesystem	Change directory.
char	strings	Output special characters (e.g., 'newline').
clear	platform	Clear the terminal.
collect	filters	Collect the stream and pass it to a block.
columns	filters	Given a record or table, produce a list of its columns' names.
commandline	core	View or modify the current command line input buffer.
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 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.
const	core	Create a parse-time constant.
continue	core	Continue a loop from the next iteration.
cp	filesystem	Copy files.
date	date	Date-related commands.
date format	removed	Removed command: use `format date` instead
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-record	date	Convert the date into a record.
date to-table	date	Convert the date into a structured table.
date to-timezone	date	Convert a date to a given time zone.
debug	debug	Debug print the value(s) piped in.
decode	strings	Decode bytes into a string.
decode base64	hash	Base64 decode a value.
decode hex	formats	Hex decode a value.
def	core	Define a custom command.
def-env	core	Define a custom command, which participates in the caller environment.
default	filters	Sets a default row's column if missing.
describe	core	Describe the type and structure of the value(s) piped in.
detect columns	strings	Attempt to automatically split text into multiple columns.
dfr agg	lazyframe	Performs a series of aggregations from a group-by.
dfr agg-groups	expression	creates an agg_groups expression
dfr all-false	dataframe	Returns true if all values are false.
dfr all-true	dataframe	Returns true if all values are true.
dfr append	dataframe	Appends a new dataframe.
dfr arg-max	dataframe	Return index for max value in series.
dfr arg-min	dataframe	Return index for min value in series.
dfr arg-sort	dataframe	Returns indexes for a sorted series.
dfr arg-true	dataframe	Returns indexes where values are true.
dfr arg-unique	dataframe	Returns indexes for unique values.
dfr arg-where	expression	Creates an expression that returns the arguments where expression is true.
dfr as	expression	Creates an alias expression.
dfr as-date	dataframe	Converts string to date.
dfr as-datetime	dataframe	Converts string to datetime.
dfr cache	lazyframe	Caches operations in a new LazyFrame
dfr col	expression	Creates a named column expression.
dfr collect	lazyframe	Collect lazy dataframe into eager dataframe.
dfr columns	dataframe	Show dataframe columns.
dfr concat-str	expression	Creates a concat string expression.
dfr concatenate	dataframe	Concatenates strings with other array.
dfr contains	dataframe	Checks if a pattern is contained in a string.
dfr count	expression	creates a count expression
dfr count-null	dataframe	Counts null values.
dfr cumulative	dataframe	Cumulative calculation for a series.
dfr datepart	expression	Creates an expression for capturing the specified datepart in a column.
dfr drop	dataframe	Creates a new dataframe by dropping the selected columns.
dfr drop-duplicates	dataframe	Drops duplicate values in dataframe.
dfr drop-nulls	dataframe	Drops null values in dataframe.
dfr dtypes	dataframe	Show dataframe data types.
dfr dummies	dataframe	Creates a new dataframe with dummy variables.
dfr explode	lazyframe	Explodes a dataframe or creates a explode expression.
dfr expr-not	expression	creates a not expression
dfr fetch	lazyframe	collects the lazyframe to the selected rows.
dfr fill-nan	lazyframe	Replaces NaN values with the given expression.
dfr fill-null	lazyframe	Replaces NULL values with the given expression.
dfr filter	lazyframe	Filter dataframe based in expression.
dfr filter-with	dataframe or lazyframe	Filters dataframe using a mask or expression as reference.
dfr first	dataframe	Show only the first number of rows or create a first expression
dfr flatten	lazyframe	An alias for dfr explode
dfr get	dataframe	Creates dataframe with the selected columns.
dfr get-day	dataframe	Gets day from date.
dfr get-hour	dataframe	Gets hour from date.
dfr get-minute	dataframe	Gets minute from date.
dfr get-month	dataframe	Gets month from date.
dfr get-nanosecond	dataframe	Gets nanosecond from date.
dfr get-ordinal	dataframe	Gets ordinal from date.
dfr get-second	dataframe	Gets second from date.
dfr get-week	dataframe	Gets week from date.
dfr get-weekday	dataframe	Gets weekday from date.
dfr get-year	dataframe	Gets year from date.
dfr group-by	lazyframe	Creates a group-by object that can be used for other aggregations.
dfr implode	expression	Aggregates a group to a Series
dfr into-df	dataframe	Converts a list, table or record into a dataframe.
dfr into-lazy	lazyframe	Converts a dataframe into a lazy dataframe.
dfr into-nu	dataframe	Converts a dataframe or an expression into into nushell value for access and exploration.
dfr is-duplicated	dataframe	Creates mask indicating duplicated values.
dfr is-in	expression	Creates an is-in expression.
dfr is-not-null	dataframe	Creates mask where value is not null.
dfr is-null	dataframe	Creates mask where value is null.
dfr is-unique	dataframe	Creates mask indicating unique values.
dfr join	lazyframe	Joins a lazy frame with other lazy frame.
dfr last	dataframe	Creates new dataframe with tail rows or creates a last expression.
dfr lit	expression	Creates a literal expression.
dfr lowercase	dataframe	Lowercase the strings in the column.
dfr ls	dataframe	Lists stored dataframes.
dfr max	expression	Creates a max expression or aggregates columns to their max value
dfr mean	expression	Creates a mean expression for an aggregation or aggregates columns to their mean value
dfr median	lazyframe	Aggregates columns to their median value
dfr melt	dataframe	Unpivot a DataFrame from wide to long format.
dfr min	expression	Creates a min expression or aggregates columns to their min value
dfr n-unique	dataframe	Counts unique values.
dfr not	dataframe	Inverts boolean mask.
dfr open	dataframe	Opens CSV, JSON, JSON lines, arrow, avro, or parquet file to create dataframe.
dfr otherwise	expression	completes a when expression.
dfr quantile	lazyframe	Aggregates the columns to the selected quantile.
dfr query	dataframe	Query dataframe using SQL. Note: The dataframe is always named 'df' in your query's from clause.
dfr rename	dataframe or lazyframe	Rename a dataframe column.
dfr replace	dataframe	Replace the leftmost (sub)string by a regex pattern.
dfr replace-all	dataframe	Replace all (sub)strings by a regex pattern.
dfr reverse	lazyframe	Reverses the LazyFrame
dfr rolling	dataframe	Rolling calculation for a series.
dfr sample	dataframe	Create sample dataframe.
dfr select	lazyframe	Selects columns from lazyframe.
dfr set	dataframe	Sets value where given mask is true.
dfr set-with-idx	dataframe	Sets value in the given index.
dfr shape	dataframe	Shows column and row size for a dataframe.
dfr shift	dataframe or lazyframe	Shifts the values by a given period.
dfr slice	dataframe	Creates new dataframe from a slice of rows.
dfr sort-by	lazyframe	sorts a lazy dataframe based on expression(s).
dfr std	expression	Creates a std expression for an aggregation of std value from columns in a dataframe
dfr str-lengths	dataframe	Get lengths of all strings.
dfr str-slice	dataframe	Slices the string from the start position until the selected length.
dfr strftime	dataframe	Formats date based on string rule.
dfr sum	expression	Creates a sum expression for an aggregation or aggregates columns to their sum value
dfr summary	dataframe	For a dataframe, produces descriptive statistics (summary statistics) for its numeric columns.
dfr take	dataframe	Creates new dataframe using the given indices.
dfr to-arrow	dataframe	Saves dataframe to arrow file.
dfr to-avro	dataframe	Saves dataframe to avro file.
dfr to-csv	dataframe	Saves dataframe to CSV file.
dfr to-jsonl	dataframe	Saves dataframe to a JSON lines file.
dfr to-parquet	dataframe	Saves dataframe to parquet file.
dfr unique	dataframe or lazyframe	Returns unique values from a dataframe.
dfr uppercase	dataframe	Uppercase the strings in the column.
dfr value-counts	dataframe	Returns a dataframe with the counts for unique values in series.
dfr var	expression	Create a var expression for an aggregation
dfr when	expression	Creates and modifies a when expression.
dfr with-column	dataframe or lazyframe	Adds a series to the dataframe.
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	core	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 block 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 base64	hash	Encode a string or binary value using Base64.
encode hex	formats	Encode a binary value using hex.
enter	shells	Enters a new shell at the given path.
enumerate	filters	Enumerate the elements in a stream.
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 the current process.
exit	shells	Exit Nu.
explain	debug	Explain closure contents.
explore	viewers	Explore acts as a table pager, just like `less` does for text.
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 def-env	core	Define a custom command that participates in the environment and export it from a module.
export extern	core	Define an extern and export it from a module.
export extern-wrapped	core	Define an extern with a custom code block 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.
extern-wrapped	core	Define a signature for an external command with a custom code block.
fill	conversions	Fill and Align.
filter	filters	Filter values based on a predicate closure.
find	filters	Searches terms in the input.
first	filters	Return only the first several rows of the input. Counterpart of `last`. Opposite of `skip`.
flatten	filters	Flatten the table.
fmt	conversions	Format a number.
for	core	Loop over a range.
format	strings	Format columns into a string using a simple pattern.
format date	date	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.
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 from json to structured data.
from nuon	formats	Convert from nuon to structured data.
from ods	formats	Parse OpenDocument Spreadsheet(.ods) data and create table.
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.
g	shells	Switch to a given shell, or list all shells if no given shell number.
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	filters	Groups input into groups of `group_size`.
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 externs	core	Show help on nushell externs.
help modules	core	Show help on nushell modules.
help operators	core	Show help on nushell operators.
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	misc	Get the command history.
history session	misc	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	Patch a body to a URL.
http post	network	Post a body to a URL.
http put	network	Put a body to a URL.
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.
input list	platform	Interactive list selection.
input listen	platform	Listen for user interface event
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.
into	conversions	Commands to convert data from one type to another.
into binary	conversions	Convert value to a binary primitive.
into bits	conversions	Convert value to a binary primitive.
into bool	conversions	Convert value to boolean.
into datetime	conversions	Convert text or timestamp into a datetime.
into decimal	conversions	deprecated: convert data into a floating point number.
into duration	conversions	Convert value to duration.
into filesize	conversions	Convert value to filesize.
into float	conversions	Convert data into floating point number.
into int	conversions	Convert value to integer.
into record	conversions	Convert value to record.
into sqlite	conversions	Convert table into a SQLite database.
into string	conversions	Convert value to string.
is-admin	core	Check if nushell is running with administrator or root privileges.
is-empty	filters	Check for empty values.
items	filters	Given a record, iterate on each pair of column name and associated value.
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 the process id.
last	filters	Return only the last several rows of the input. Counterpart of `first`. Opposite of `drop`.
lazy make	core	Create a lazy record.
length	filters	Count the number of items in an input list or rows in a table.
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.
metadata	debug	Get the metadata for items in the stream.
mkdir	filesystem	Make directories, creates intermediary directories as required.
module	core	Define a custom module.
move	filters	Move columns before or after other columns.
mut	core	Create a mutable variable and give it a value.
mv	filesystem	Move files or directories.
n	shells	Switch to the next shell.
nu-check	strings	Validate and parse 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 active overlays.
overlay new	core	Create an empty overlay.
overlay use	core	Use definitions from a module as an overlay.
p	shells	Switch to the previous shell.
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.
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 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).
port	network	Get a free port from system.
prepend	filters	Prepend any number of rows to a table.
print	strings	Print the given values to stdout.
profile	debug	Profile each pipeline element in a closure.
ps	system	View information about system processes.
query	filters	Show all the query commands
query db	database	Query a database using SQL.
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 xml	filters	execute xpath query on xml
random	random	Generate a random value.
random bool	random	Generate a random boolean value.
random chars	random	Generate random chars.
random decimal	random	deprecated: Generate a random float within a range [min..max].
random dice	random	Generate a random dice roll.
random float	random	Generate a random float within a range [min..max].
random integer	random	Generate a random integer [min..max].
random uuid	random	Generate a random uuid4 string.
range	filters	Return only the selected rows.
reduce	filters	Aggregate a list to a single value using an accumulator closure.
register	core	Register a plugin.
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 function.
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.
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	filters	Output info on the aliases in the current scope.
scope commands	filters	Output info on the commands in the current scope.
scope engine-stats	filters	Output stats on the engine in the current state.
scope externs	filters	Output info on the known externals in the current scope.
scope modules	filters	Output info on the modules in the current scope.
scope variables	filters	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.
shells	shells	Lists all open shells.
shuffle	filters	Shuffle rows randomly.
size	strings	Gather word count statistics on the text.
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.
sort	filters	Sort in increasing order.
sort-by	filters	Sort by the given columns, in increasing order.
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 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.
split-by	filters	Create a new table split.
start	filesystem	Open a folder, file or website in the default application or viewer.
str	strings	Various commands for working with string data.
str camel-case	strings	Convert a string to camelCase.
str capitalize	strings	Capitalize 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	Make text lowercase.
str ends-with	strings	Check if an input ends with a string.
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.
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 substring	strings	Get part of a string. Note that the start is included but the end is excluded, and 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	Make text uppercase.
sys	system	View information about 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.
term size	platform	Returns a record containing the number of columns (width) and rows (height) of the terminal.
timeit	debug	Time the running time of a block.
to	formats	Translate structured data to a format.
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 nuon	formats	Converts table data into Nuon (Nushell Object Notation) text.
to text	formats	Converts data into simple text.
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.
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 block.
tutor	misc	Run the tutorial. To begin, run: tutor.
ucp	filesystem	Copy files using uutils/coreutils cp.
uniq	filters	Return the distinct values in the input.
uniq-by	filters	Return the distinct values in the input by the given column(s).
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 encode	strings	Converts a string to a percent encoded web safe string.
url join	network	Converts a record to url.
url parse	network	Parses a url.
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.
view	debug	Various commands for viewing debug information.
view files	debug	View the files registered in nushell's EngineState memory.
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 based on a row condition.
which	system	Finds a program file, alias or custom command.
while	core	Conditionally run a block in a loop.
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.