human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: PowerShell (Cmdlet), PowerShell (Alias), CMD.EXE / COMMAND.COM, Unix shell, Description
###Question: If Powershell (alias) is cpi, copy, cp, what are all corresponding descriptions. 
gpt
SELECT Description FROM table WHERE PowerShell (Alias) = cpi, copy, cp