COP3502: Introduction to Computer Science Yashas Shankar

Basic UNIX commands  SSH to shell.cs.fsu.edu  Reviews  ls – list  cp – copy  mv – move (rename)  rm – remove (delete)  pwd – gives current directory  man – gives manual  ‘>’ – redirection, create new file  ‘>>’ – redirection, append the file, create a file if it does not exist  Emacs – edit text  CTRL-X-S to save  CTRL-X-C to exit

Basic UNIX commands  ls – list files and directory  Try ‘man ls’ to see how to use ls  ls –l  list details -l total 24 - rw shankar CS-Grads 7 Aug 27 15:10 fileone.txt d rwx shankar CS-Grads 4096 Aug 16 12:02 PROGRAMMING d rwx shankar CS-Grads 4096 Aug 27 11:39 SLIDES d rwx shankar CS-Grads 4096 Aug 17 11:08 WEBPAGE d = directory r = read w = write x = execute There are 3 groups of users -you -your group -others

Basic UNIX commands  More on directories .  your current directory ..  one higher directory  ~  your home directory Shell.cs.fsu.edu higher directory shankar home directory COPxxxx COP3502 ppp2131.txt Assume that you are in ~/COP3502 Cd..  move to your home directory Cd COPxxxx move to COPxxxx directory Cd../COP3502 move to COP3502 directory

Basic UNIX commands  More on directories .  your current directory ..  one higher directory  ~  your home directory Shell.cs.fsu.edu higher directory shankar home directory COPxxxx COP3502 a.txt Assume that you are in ~/COP3502 Cp a.txt../COPxxxx/b.txt Cp a.txt../COPxxxx mv../COPxxxx/a.txt../c.txt b.txt a.txt

EXAMPLES Shell.cs.fsu.edu higher directory COP3502_TEMP c.txt A B C a.txtb.txt shankar home directory

EXAMPLES Shell.cs.fsu.edu higher directory COP3502_TEMP c.txt A B C a.txt shankar home directory cp ~/COP3502_TEMP/C/c.txt ~/COP3503_TEMP/A/a.txt cp /home/grads/shankar/COP3502_TEMP/A/a.txt /home/grads/shankar/COP3502_TEMP/B

EXAMPLES Shell.cs.fsu.edu higher directory COP3502_TEMP A a.txt shankar home directory cp A/a.txt. cp ~/COP3502_TEMP/A/a.txt. cp /home/grads/shankar/COP3502_TEMP/A/a.txt. a.txt

Unix redirection  ‘>’ redirect output to a new file  An existing file will be deleted and created (overwrite)  ‘>>’ redirect output to a file  Append output to the end of the file if the file exists  Create a new file if the file does not exists

How to use Emacs  Emacs filename  starts emacs  CTRL-X-S  save  CTRL-X-C  exit  CTRL-k  delete a line (after where the cursor is)  CTRL-y  paste the deleted line  CTRL-g  cancel  CTRL-x u  undo

Assignment#3  See handout  Due next class

Syllabus & Schedule

Textbooks  You will need the “The analytical engine” textbook starting from Week4.  You will cover the “Ethics for the information age” textbook in Week13  You will need this textbooks for the extra credits  How to find textbooks?  FSU bookstore  Bills bookstore  Online

Extra credits  Late assignments are not accepted (you will get zero). There will also not be any make-up quizzes.  You can get those points back by doing extra credits  There are four extra credits. Two will replace two of your lowest homework scores. Another two will replace two of your lowest quiz scores.  One extra credit  write a 5 page summary of one chapter in the “Ethics for the information age” textbook  Four extra credits  four chapters with 5 pages each  There will not be any other extra credits

Before we leave  Homework#1 dues tonight: send me an from your CS account  Subject  COP3502: Assignment#1 submission  Body  your full name  Homework#3 dues next class  Get familiar with UNIX and Emacs  Next class:  C, C++, Java