Alice is working on a Linux server and has navigated through several directories. She wants to confirm the absolute path of the directory she is currently working in before deploying a new application. Which command should she use to display her current directory path?
cd
echo $PWD
pwd
ls -d .
The correct answer is pwd, which stands for 'print working directory'. This command is used to output the full pathname of the current working directory, providing users with their exact location in the filesystem hierarchy. This information is especially important when performing operations that are sensitive to the current directory context, such as deploying applications, running scripts, or managing files. While echo $PWD often produces the same output, it reads from the $PWD environment variable, which may not always be accurate and is not the primary command for this task. The cd command is used to change directories, not display the current one. The ls -d . command lists the current directory entry itself as '.', not its full path.
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