[Solved] Why does running ruby -e 'puts "Hello"' work without a script file? — Ans: Because -e executes the given code string directly | Ruby

Ruby - Basics and Runtime

Why does running ruby -e 'puts "Hello"' work without a script file?

ABecause it opens an interactive shell

BBecause Ruby creates a temporary script file automatically

CBecause -e executes the given code string directly

DBecause it runs the last saved script

Step-by-Step Solution

Solution:

Step 1: Understand the -e option in Ruby
The -e option tells Ruby to execute the code string provided directly from the command line.
Step 2: Confirm behavior without script file
This allows running small Ruby code snippets without needing a separate file.
Final Answer:
Because -e executes the given code string directly -> Option C
Quick Check:
-e runs code string directly without file [OK]

Quick Trick: Use -e to run Ruby code directly from command line [OK]

Common Mistakes:

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