# 2.1:  Open a Command Prompt (Windows) or a Terminal window (Mac).

#   * (Unix only) Use pwd to see the "present working directory"
#   * Use ls (Mac) or dir (Windows) to see a listing of the files and directories in this directory
#   * Use cd to move into a directory you see listed in the present working directory (for example
# cd Downloads)
#   * Use cd .. to move into the "parent" directory of the one you are in (this will take you back
# to the parent of Downlaods
#   * Use cd /Users/[yourhomedir]/Desktop to move into the Desktop directory
#   * Use cd ../Downloads to move from the Desktop directory to the Downloads directory
#   * Use cd (Mac) or cd %HOMEPATH% (Windows) to move back into the home directory
# 

