?Match each correct item with the statement below.?

A. ?A variable that is altered by loop constructs to ensure that commands are not executed indefinitely.
B. ?A special construct used in a shell script to alter the flow of the program based on the outcome of a command or contents of a variable. Common decision constructs include if, case, &&, and ||.
C. ?The variables that store information commonly accessed by the system or programs executing on the system; together, these variables form the user environment.
D. ?The numeric labels used to define command input and command output.
E. ?The first line in a shell script, which defines the shell that will be used to interpret the commands in the script file.
F. ?A special construct used in a shell script to execute commands repetitively. Common decision constructs include for and while.
G. ?The process of changing the default locations of Standard Input, Standard Output, and Standard Error.
H. ?A file descriptor that represents any error messages generated by a command.
I. ?A file descriptor that represents information input to a command during execution.
J. ?A file descriptor that represents the desired output from a command.

A. ?counter variable
B. decision construct?
C. ?environment variables
D. ?file descriptors
E. ?hashpling
F. loop construct?
G. ?redirection
H. Standard Error (stderr)?
I. ?Standard Input (stdin)
J. Standard Output (stdout)