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Exercise #3 answers
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echo "This is an executable shell script."
hostname
pwd
date
cal 07 1954
du /bin
file /bin/ls
wc /etc/passwd
cp /etc/passwd .
mv passwd mypasswd
tail -5 mypasswd
head -5 mywasswd | sort
head -10 mypasswd | tail -6
touch myempty
ls -l myempty
rm myempty
man -k file | wc
man -k file | grep '(1)' | wc
find /usr/bin | wc
who | sort | tail -1
echo "Pausing...."
sleep 2
exit