[Solved] You want to create a script that sets a temporary environment variable TEMP_VAR only for a single command execution, without affecting the shell's environment... Which command correctly does this? | Linux CLI

Linux CLI - Environment and Configuration

You want to create a script that sets a temporary environment variable TEMP_VAR only for a single command execution, without affecting the shell's environment afterwards. Which command correctly does this?

ATEMP_VAR=value command

Bexport TEMP_VAR=value; command

Cset TEMP_VAR=value command

Dcommand; export TEMP_VAR=value

Step-by-Step Solution

Solution:

Step 1: Understand temporary environment variables for one command
Setting a variable before a command like TEMP_VAR=value command runs the command with that variable set only for its execution.
Step 2: Evaluate each option
export TEMP_VAR=value; command exports variable globally; set TEMP_VAR=value command uses invalid syntax; command; export TEMP_VAR=value sets variable after command runs.
Final Answer:
TEMP_VAR=value command -> Option A
Quick Check:
Prefix variable before command for temporary env [OK]

Quick Trick: Put variable before command to set it temporarily [OK]

Common Mistakes:

Using export which affects shell permanently
Trying to set variable after command runs
Using incorrect syntax like 'set' for env variables

Master "Environment and Configuration" in Linux CLI

9 interactive learning modes - each teaches the same concept differently

Learn Why Deep Visual Try Challenge Project Recall Time

More Linux CLI Quizzes

Which command correctly does this?

Step 1: Understand temporary environment variables for one command

Step 2: Evaluate each option

Final Answer:

Quick Check:

Want More Practice?