This first part is from memory because when I got kicked off the
wireless in the middle the history before that was lost. :-(

ls
ls --help
ls --help |less
ls --help > lshelp
emacs lshelp &
less lshelp
man ls

This middle part was actually saved correctly:

  998  cat lec1
  999  less lec1
 1000  cd foo
 1001  cat inf1.c | mail -s 'here is the file' jhlewis
 1002  ls
 1003  cat inf.c | mail -s 'here is the file' jhlewis
 1004  whoami
 1005  ls ~jhlewis
 1006  ls -l 
 1007  ls -l ..
 1008  ls
 1009  ls -l
 1010  cat bar
 1011  chmod a+r bar
 1012  ls -l
 1013  man chmod
 1014  quota
 1015  cd ~
 1016  cat .bash_login
 1017  history
 1018  ls
 1019  ls -a
 1020  ls -al
 1021  less /etc/passwd
 1022  less /etc/shadow
 1023  emacs 
 1024  emacs &
 1025  ls
 1026  ls &
 1027  jobs
 1028  ps -aux
 1029  ps -aux |less
 1030  top
 1031  echo cd > runthis
 1032  cat runthis 
 1033  echo ls >>   runthis
 1034  cat runthis
 1035  cd /usr/bin
 1036  ls
 1037  ls ~
 1038  source ~runthis
 1039  source ~djg/runthis
 1040  pwd
 1041  emacs &
 1042  pwd
 1043  history > lec2live

I also showed how to create file echo.java, compile it, and use the
program on the command-line.  Some examples (from memory; alas I did
not save them):

javac echo.java
java Echo
java Echo hello world
java Echo *
java Echo "*"
java Echo [Ee]cho*
java Echo "[Ee]cho*"