[Solved] What will be the output of the following commands?MYVAR=hello export MYVAR bash -c 'echo $MYVAR' — Ans: hello | Linux CLI

Linux CLI - Environment and Configuration

What will be the output of the following commands?

MYVAR=hello
export MYVAR
bash -c 'echo $MYVAR'

A(no output — empty line)

Bhello

CMYVAR

Dbash: MYVAR: command not found

Step-by-Step Solution

Solution:

Step 1: Understand variable export and subshell
Assigning MYVAR=hello and exporting it makes it available to child shells.
Step 2: Check the subshell echo
The bash -c 'echo $MYVAR' runs a new shell that inherits exported variables, so it prints hello.
Final Answer:
hello -> Option B
Quick Check:
exported variable visible in subshell = hello [OK]

Quick Trick: Exported variables appear in child shells [OK]

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