# Where in the directory tree am I?
# List the documents and sub-directories in the current directory
# a bit nicer listing with more information
# Change into your home directory
# Change back into the last directory
# Change one directory up in the tree
# Change explicitly into a directory "temp"
# Quickly show content of a file "temp.txt"
# exist the view with "q", navigate line up and down with "k" and "j"
# Show the beginning of a file "temp.txt"
# Show the end of a file "temp.txt"