Quick Answer
The answer is pwd and echo $PWD. The pwd command directly queries the operating system for the current working directory path, while echo $PWD prints the value stored in the shell’s environment variable, which the shell automatically updates each time you change directories with cd. On the Linux Foundation Certified System Administrator LFCS exam, this question tests your understanding of both explicit commands and shell environment variables, often appearing as a multiple-select item where candidates must choose exactly two correct options. A common trap is assuming that only pwd works, but the shell’s $PWD variable is equally reliable and frequently used in scripts. Remember the memory tip: “pwd prints the path, echo $PWD echoes the environment” — both show where you stand in the filesystem.
This LFCS practice question tests your understanding of essential commands. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which TWO commands can be used to display the current working directory? (Choose exactly two.)
ls
Why wrong: Lists files, not current directory.
echo $PWD
Correct: prints the PWD variable.
pwd
Correct: prints working directory.
dirname
Why wrong: Extracts directory part of a file path, not current directory.
cd
Why wrong: Changes directory, does not display it.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
echo $PWD
Option B is correct because the shell stores the current working directory path in the environment variable `$PWD`, and `echo $PWD` prints its value. This is a reliable way to display the current directory, as the shell updates `PWD` automatically on every `cd` command.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
ls
Why it's wrong here
Lists files, not current directory.
echo $PWD
Why this is correct
Correct: prints the PWD variable.
Related concept
Read the scenario before looking for a memorised answer.
pwd
Why this is correct
Correct: prints working directory.
Related concept
Read the scenario before looking for a memorised answer.
dirname
Why it's wrong here
Extracts directory part of a file path, not current directory.
cd
Why it's wrong here
Changes directory, does not display it.
Common exam traps
The trap here is that candidates may confuse `ls` (which lists files) with displaying the current directory path, or think `dirname` or `cd` can show the current directory without additional arguments.
Detailed technical explanation
The `pwd` command (option C) is a POSIX-standard utility that reads the current directory from the kernel's process-specific data structure (the `cwd` entry in `/proc/self/cwd` on Linux). The `$PWD` variable is maintained by the shell and may differ from the kernel's view if the directory was renamed or if symbolic links were used; `pwd -P` resolves the physical path, while `pwd -L` (default) uses the logical path from `$PWD`.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
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FAQ
Essential Commands — This question tests Essential Commands — Read the scenario before looking for a memorised answer..
The correct answer is: echo $PWD — Option B is correct because the shell stores the current working directory path in the environment variable `$PWD`, and `echo $PWD` prints its value. This is a reliable way to display the current directory, as the shell updates `PWD` automatically on every `cd` command.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
This LFCS practice question is part of Courseiva's free Linux Foundation certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the LFCS exam.
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