[Solved] What will be the output of this script?#!/bin/bash num=0 if [ $num ]; then echo "True" else echo "False" fi | Bash Scripting

Bash Scripting - Conditionals

What will be the output of this script?

#!/bin/bash
num=0
if [ $num ]; then
  echo "True"
else
  echo "False"
fi

AFalse

BTrue

CSyntax error

DNo output

Step-by-Step Solution

Solution:

Step 1: Understand condition evaluation
In bash, [ $num ] tests if $num is non-empty string. "0" is non-empty, so condition is true.
Step 2: Determine output
Since condition is true, it prints "True".
Final Answer:
True -> Option B
Quick Check:
Non-empty string condition = true [OK]

Quick Trick: Non-empty strings are true in [ ] tests [OK]

Common Mistakes:

MISTAKES

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