Class 25 Flashcards
In a case statement, what determines which block of code is executed?
the value of the variable between case and in
How do you mark the end of a code block in a case statement?
;;
What signals the end of a pattern in a case statement?
)
What meta-characters can you use in a case statement pattern?
all of them: ?, * and [ ]
What pattern would you use in a case statement if you wanted to match 11, 12 or 13?
11|12|13
What will you see on the screen if you ran a script that uses the select statement?
a menu of numbers followed by values
What happens to the value chosen by the user when responding to a select statement?
the value is assigned to the select variable
What function does the PS3 keyword shell variable serve in a select statement?
it contains the text used in the menu prompt
How do you mark the beginning of a here document in a shell script?
«_space;followed immediately by a string with no spaces between them
How do you mark the end of a here document?
with the same string that starts the here document on a line by itself