单选题：What does the shell command “read name” do?

What does the shell command “read name” do? @[B](1)
A. Sends the contents variable “name” to stdout
B. Reads a line into variable “name”
C. Reads a line from file “name”
D. Nothing, this is not a valid command.





A.Sends the contents variable “name” to stdout
B.Reads a line into variable “name”
C.Reads a line from file “name”
D.Nothing, this is not a valid command.


答案：B