Questions

1. Which of the following metacharacters allows you to view the assigned value of a variable?
   1. *
   2. %
   3. $
   4. ^
2. Which of the following statements is true?
   1. It’s perfectly correct to use either all upper-case or all lower-case letters to create your programming variable names.
   2. Variable names are not case-sensitive.
   3. You should always use upper-case letters to create the names of programming variables.
   4. You should always use lower-case letters to create the names of programming variables.
3. How would you cause a child shell to recognize a variable that you created in the parent shell?
   1. In the child shell, import the variable from the parent shell.
   2. In the parent shell, use the export keyword when creating the variable.
   3. You can’t, because the parent shell and child shell are isolated from each other.
   4. The child...