Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_14465871_1 (powershell__cmdlet_ VARCHAR, unix_shell VARCHAR)
### Question:
How many values of powershell (cmdlet) are valid when unix shell is env, export, set, setenv?
### Answer:
SELECT COUNT(powershell__cmdlet_) FROM table_14465871_1 WHERE unix_shell = "env, export, set, setenv"