Bash Scripting - Arrays
Given a bash array
nums=(5 10 15 20 25), which snippet correctly prints Length is 5?Given a bash array nums=(5 10 15 20 25), which snippet correctly prints Length is 5?
hard🚀 Application Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Identify correct length syntax
${#nums[@]}returns number of elements.Step 2: Construct echo statement
Useecho "Length is ${#nums[@]}"to print desired output.Final Answer:
echo "Length is ${#nums[@]}" -> Option AQuick Check:
Use # and [@] inside echo [OK]
Quick Trick: Print length with echo "${#array[@]}" [OK]
Common Mistakes:
MISTAKES- Using ${#nums} which gives length of first element
- Printing ${nums[@]} which prints all elements
- Printing ${nums} which prints first element
Master "Arrays" in Bash Scripting
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