Slide 4:
cat .bash_profile 
cat .bashrc
emacs .bashrc
source ~/.bashrc

Slide 5:
finger meganca
cd
emacs .plan
finger meganca

Slide 9:
echo meganca
echo -n meganca
echo "hello there"
echo hello there
echo hi there *
echo "hi there *"
echo "your current directory: `pwd`"
sudo emacs excercisescript.sh
chown meganca exercisescript.sh
chmod u+x exercisescript.sh
./exercisescript

Slide 10:
attu
./slide10.sh

Slide 12:
NAME=Meg
$NAME
echo $NAME
echo $Name
FILE="ls *.txt"
echo $FILE
FILE="`ls *.txt`"
echo $FILE
FILE="hello $NAME"
echo $FILE

Slide 16:
x=5
y=6
echo "$x + $y"
let z="$x + $y"
echo z
echo $z

Slide 17:
x=3
echo x
echo $x
echo "$x"
echo '$x'
echo \'$x\'
echo 'x'

Slide 18:
echo $HOSTNAME
echo $PS1
echo $SHELL
echo $USER
echo $PATH

Slide 19: 
PATH=""
echo $PATH
./testscript.sh 
PATH="${PATH}:."
echo $PATH
testscript.sh

Slide 20:
newvar=value
echo $newvar
bash
echo $newvar
newvar=value
echo $newvar
export newvar
bash
echo $newvar

Slide 21:
read testvar
variable content.
echo $testvar
./slide21.sh

Slide 22:
./Example.sh

Slide 23:
sudo emacs slide24.sh
./slide24.sh

Slide 25:
seq 6
chmod u+x createhw.sh
./createhw.sh 5