Table:
0
A
B
C
D
E
1
PowerShell (Cmdlet)
PowerShell (Alias)
CMD.EXE / COMMAND.COM
Unix shell
Description
2
Get-Content
gc, type, cat
type
cat
Get the content of a file
3
Get-Command
gcm
help
help , which
List available commands
4
Get-Help
help, man
help
man
Help on commands
5
Copy-Item
cpi, copy, cp
copy
cp
Copy one or several files / a whole directory tree
6
Move-Item
mi, move, mv
move
mv
Move a file / a directory to a new location
7
Remove-Item
ri, del, erase, rmdir, rd, rm
del , erase , rmdir , rd
rm , rmdir
Delete a file / a directory
8
Rename-Item
rni, ren, mv
ren , rename
mv
Rename a file / a directory
9
Push-Location
pushd
pushd
pushd
Push the current directory onto the stack
10
Set-Location
sl, cd, chdir
cd , chdir
cd
Change the current directory
11
Write-Output
echo, write
echo
echo
Print strings, variables etc. to standard output
12
Select-String
sls
find , findstr
grep
Print lines matching a pattern
13
Set-Variable
sv, set
set
env, export, set, setenv
Set the value of a variable / create a variable

Questions and formulas:
Question: What are the names of all unix shell with PowerShell (Cmdlet) of select-string?
Formula: FILTER(D1,A1="Select-String")
Formula2: FILTER(D2:D13,A2:A13="Select-String")
Level: easy
Question: What are all values of CMD.EXE / COMMAND.COM for the unix shell echo?
Formula: FILTER(C1,D1="echo")
Formula2: FILTER(C2:C13,D2:D13="echo")
Level: easy
Question: If Powershell (alias) is cpi, copy, cp, what are all corresponding descriptions. 
Formula: FILTER(E1,B1="cpi, copy, cp")
Formula2: FILTER(E2:E13,B2:B13="cpi, copy, cp")
Level: easy
Question: When the cmd.exe / command.com is type, what are all associated values for powershell (cmdlet)?
Formula: FILTER(A1,C1="type")
Formula2: FILTER(A2:A13,C2:C13="type")
Level: easy
Question: How many values of powershell (cmdlet) are valid when unix shell is env, export, set, setenv?
Formula: ROWS(FILTER(A1,D1="env, export, set, setenv"))
Formula2: ROWS(FILTER(A2:A13,D2:D13="env, export, set, setenv"))
Level: easy