Nu map from imperative languages

The idea behind this table is to help you understand how Nu built-ins and plugins relate to imperative languages. We've tried to produce a map of programming-relevant Nu commands and what their equivalents are in other languages. Contributions are welcome.

Note: this table assumes Nu 0.43 or later.

Nushell	Python	Kotlin (Java)	C++	Rust
append	list.append, set.add	add	push_back, emplace_back	push, push_back
math avg	statistics.mean
calc, = math	math operators	math operators	math operators	math operators
count	len	size, length	length	len
cp	shutil.copy
date	datetime.date.today	java.time.LocalDate.now
drop	list[:-3]
du	shutil.disk_usage
each	for	for	for	for
exit	exit	System.exit, kotlin.system.exitProcess	exit	exit
http get	urllib.request.urlopen
first	list[:x]	List[0], peek	vector[0], top	Vec[0]
format	format	format	format	format!
from	csv, json, sqlite3
get	dict["key"]	Map["key"]	map["key"]	HashMap["key"], get, entry
group-by	itertools.groupby	groupBy		group_by
headers	keys
help	help
insert	dict["key"] = val
is-empty	is None, is []	isEmpty	empty	is_empty
take	list[:x]			&Vec[..x]
take until	itertools.takewhile
take while	itertools.takewhile
kill	os.kill
last	list[-x:]			&Vec[Vec.len()-1]
lines	split, splitlines	split	views::split	split, split_whitespace, rsplit, lines
ls	os.listdir
match	re.findall	Regex.matches	regex_match
merge	dict.append
mkdir	os.mkdir
mv	shutil.move
get	list[x]	List[x]	vector[x]	Vec[x]
open	open
transpose	zip(*matrix)
http post	urllib.request.urlopen
prepend	deque.appendleft
print	print	println	printf	println!
ps	os.listdir('/proc')
pwd	os.getcwd
range	range	.., until, downTo, step	iota	..
reduce	functools.reduce	reduce	reduce	fold, rfold, scan
reject	del
rename	shutil.move
reverse	reversed, list.reverse	reverse, reversed, asReversed	reverse	rev
rm	os.remove
save	io.TextIOWrapper.write
select	{k:dict[k] for k in keys}
shuffle	random.shuffle
size	len
skip	list[x:]			&Vec[x..],skip
skip until	itertools.dropwhile
skip while	itertools.dropwhile			skip_while
sort-by	sorted, list.sort	sortedBy, sortedWith, Arrays.sort, Collections.sort	sort	sort
split row	str.split{,lines}, re.split	split	views::split	split
str	str functions	String functions	string functions	&str, String functions
str join	str.join	joinToString		join
str trim	strip, rstrip, lstrip	trim, trimStart, trimEnd	regex	trim, trim*{start,end}, strip*{suffix,prefix}
sum	sum	sum	reduce	sum
sys	sys
to	import csv, json, sqlite3
touch	open(path, 'a').close()
uniq	set	Set	set	HashSet
upsert	dict["key"] = val
version	sys.version, sys.version_info
with-env	os.environ
where	filter	filter	filter	filter
which	shutil.which
wrap	{ "key" : val }