How can Linux determine if a directory exists?

You can use the following command in the Linux system to check if a directory exists:

1. Check if the directory exists using the ls command.

ls /path/to/directory

If the directory exists, the ls command will list the files and subdirectories in the directory; if the directory does not exist, the ls command will prompt “No such file or directory”.

1. Check if a directory exists using the test command.

if [ -d /path/to/directory ]; then
    echo "Directory exists."
else
    echo "Directory does not exist."
fi

If the directory exists, it will output “Directory exists”; if the directory does not exist, it will output “Directory does not exist.”

1. This command quickly checks if the directory exists by using [ -d /path/to/directory ] && echo “Directory exists.” || echo “Directory does not exist.”