Basic Scripting Concepts Flashcards
7 cards from real 010-160 practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Basic Scripting Concepts flashcards as text
In a bash `for` loop written as `for i in 1 2 3 4 5; do echo $i; done`, how many times does the loop body execute?
Answer: 5
The loop iterates once for each word in the list, which contains five elements.
What does the `shift` command do inside a shell script?
Answer: Shifts positional parameters left, dropping $1
`shift` removes `$1` and renumbers remaining positional parameters so `$2` becomes `$1`, and so on.
Which quoting style prevents ALL special-character interpretation in bash?
Answer: Single quotes ''
Single quotes preserve the literal value of every character inside them with no exceptions.
What is the purpose of the `break` statement inside a loop?
Answer: Exits the innermost loop
`break` terminates execution of the innermost enclosing loop and resumes after it.
Which variable holds all positional parameters passed to a script as a single quoted string?
Answer: $*
`$*` expands all positional parameters as a single word joined by the first character of IFS.
What will `echo ${#name}` print if `name="Linux"`?
Answer: 5
The `${#var}` expansion returns the length in characters of the variable's value.
In a `case` statement, which pattern acts as a catch-all (default) match?
Answer: *)
The `*)` pattern matches any string not matched by earlier patterns, serving as the default case.