Bash Scripting - User Input
What will be the output of this script when run as
./script.sh red blue green yellow?#!/bin/bash shift 2 echo "$1 $2"
What will be the output of this script when run as ./script.sh red blue green yellow?
medium📝 Command Output Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Initial arguments
Arguments are: $1=red, $2=blue, $3=green, $4=yellowStep 2: Apply shift 2
After shifting twice, $1 becomes original $3 (green), $2 becomes original $4 (yellow)Step 3: Output
Echo prints "$1 $2" which is "green yellow"Final Answer:
green yellow -> Option DQuick Check:
Shift moves arguments left by specified count [OK]
Quick Trick: Shift N removes first N arguments [OK]
Common Mistakes:
MISTAKES- Assuming arguments remain unchanged after shift
- Mixing order of arguments after shift
- Confusing $1 and $2 values
Master "User Input" in Bash Scripting
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore Bash Scripting Quizzes