ls
clear
ls
cd 390
ls
cd lec01
ls
pwd
ls 
ls Music
cd Music
ls
cd 
pwd
cd
cd ~
cd ~rea
ls
cd 390/lec01/
pwd
ls
cd .
pwd
cd ..
pwd
cd ../..
ls
cd
pwd
ls
cd 390/lec01/
ls
cd /
pwd
ls
pwd
cd /cse
ls
cd
cd 390/lec01
pwd
ls
ls Music
ls -l Music
man ls	[Notes: use return to advance one line, space advances one page, 
    	b goes back one page, k goes back one line, / to search for something
    	e.g. /-r to search on the -r option, n to go to the next occurence
	of -r, or / to repeat that same search, q to exit man]
ls -l
ls -lr
ls -la
touch .tiny [Notes: creates an empty file called .tiny if one does not
      	    already exist.  Otherwise changes the timestamp on .tiny
	    to be the current time.
      	    You can only see files that start with a dot using the -a
      	    option to ls.  You can see the timestamp using -l or
      	    --full-time]
ls -la
ls -l
mkdir SillyDir
ls -l
cd SillyDir/
ls
man cd  [Notes: cd is a command that is built-in to the shell.]
ls
cd ..
ls
cat numbers.txt 
cp numbers.txt numbers-new.txt
ls
cat numbers-new.txt 
history [Notes: history shows a list of the commands you have typed recently.]
cp numbers-new.txt Music/
ls Music
ls -l
ls Music/ [Notes: either ls Music or ls Music/ will work but in terms
   	 of showing what you are doing, the later shows that Music is
   	 a directory.]
ls --help
info touch [Notes: info is another way of getting help about a command.]
clear
date
man date
cal
cal 2013
man cal
uname
man uname
uname -a
ls
cd Music/
ls
pwd
ls
mv verse2.txt verse4.txt [Notes: mv is a way of renaming or moving a file.
   	      		 This renames verse2.txt to be verse4.txt]
ls
mv verse4.txt ..
ls
ls ..
cd ..
ls
cp verse4.txt Music/verse2.txt [Notes: copies verse4.txt into the Music
   	      		       	directory, and renames it verse2.txt]
ls Music/
ls
rm verse4.txt 
ls
ls -l
cd Music/
ls -l
date
touch verse3.txt [Notes: This creates a file verse3.txt if one does not already 
      		 exist.  Otherwise, it sets the timestamp on verse3.txt to be
		 the current time.]
ls -l
date
touch -t 201212250230 verse3.txt [Notes: try man touch to see what the
      	 	      		  -t option does. Use / to search for -t 
				  in the man page]
ls -l
ls --full-time
mv -i verse3.txt verse1.txt [Notes: prompt before overwriting verse1.txt if 
      		 	    it already exists.]
ls *.txt [Notes: This will match any filename that ends in .txt]
mkdir newMusic
mv *.txt newMusic
exit