Linux bash script basics

Question 1

if statement

Answer 1

if [[ condition ]]; then
body
elif [[ condition ]]; then

fi

Question 2

How to create indexed array

Answer 2

array_name=(“one” “two” “three”)

Question 3

how to create an associative array (and add new key pairs)

Answer 3

declare -A person

person[“name”]=Carson

Question 4

how to access associative array keys

Answer 4

${!associative_array[@]}

Question 5

how to access associative array values

Answer 5

${associative_array[@]}

Question 6

for loop syntax

Answer 6

for x in list; do
code
done

Question 7

command substitution

Answer 7

var=$(command)

passes the output of a command into a variable

Question 8

what is a heredocument?

Answer 8

command «_space;delimited (“eof”)
code
eof

sending inputs into a command