2.1

Question 1

A command line interface (CLI) or text user interface (TUI) to the Linux operating system.

Answer 1

linux shell

Question 2

A character or set of characters at the start of the command line that indicates that the shell is ready to receive commands.

Answer 2

shell prompt

Question 3

An shell environment variable that contains the set of directories that are searched when you type an executable file at the shell prompt.

Answer 3

PATH enviorment variable

Question 4

A shell feature that attempts to complete a command, file, or directory by pressing the Tab key after the first few characters of a command, file, or directory is typed at the shell prompt.

Answer 4

Tab complete

Question 5

A shell feature that stores shell commands and displays them when you press the Up and Down arrow keys.

Answer 5

Command History

Question 6

bourne shell

Answer 6

sh

Question 7

bourne again shell

Answer 7

bash

Question 8

originally developed for bxd units, uses variation of c rpograming

Answer 8

cshell or csh

Question 9

improved version of cshell

Answer 9

tsch

Question 10

improved version of bash shell

Answer 10

z shell

Question 11

using echo $SHELL will return what

Answer 11

the current shell version it is

Question 12

switch shell using the following keys

Answer 12

tyoe the shell name