Class Notes of DATA 520 (Fall 2023)
===================================


Thursday, October 19, 2023
--------------------------

  SELECT b.title, a.name FROM book b, author a
    WHERE a.name="POKE MON";

  20 books
  10 authors

  for ( i=0; i<20; i++ )
   for ( j=0; j<10; j++ )
    

Thursday, September 14, 2023
----------------------------

Useful Linux commands:

cd
emacs .profile
source .profile
mkdir public_html
mkdir public_html/cgi-bin
chcon -R -t httpd_user_content_t /home/first.lastname/public_html
chmod 755 *


Thursday, September 07, 2023
----------------------------

    O   G   3
   --- --- ---
   rwx r-x r-x
   111 101 101
   --- --- ---
    7   5   5