Bash arrays store several words under one variable name. Indexes start at zero.

Program

Play the script to watch an array provide one element and a count.

arrays.sh
#!/usr/bin/env bash

tasks=("lint" "test" "package")
first="${tasks[0]}"
count="${#tasks[@]}"
echo "$first/$count"
array An array stores multiple values and retrieves each by index.
array length `${#array[@]}` expands to the number of array elements.