exit
ls
pwd
cd Pictures/
cd ..
pwd
cd Pictures/doggy/
ls .
pwd
cd ~/Downloads/
cd /
cd ~
cd Documents/390a/11sp/
mkdir daisy
ls daisy/
rmdir daisy/
clear
ls -lar
man ls
ls -la
ls -lar
ls -lr
clear
date
cal
uname
man uname
uname -p
man man
touch HelloWorld.java 
man touch
touch -t 12280456 HelloWorld.java 
touch -t 201012280456 HelloWorld.java 
ls --full-time