Bash Shell Programming :

sed Stream editor Sed is a complex and powerful command. You can edit a file from the command line or from a script, replacing one word or expression/pattern with another.

echo "A cow is grazing in the summer" > linuxtest3.txt echo "in the middle of June when all the" >> linuxtest3.txt echo "other cows are out in the field." >> linuxtest3.txt cat linuxtest3.txt | sed s /cow/computer/ > linuxtest4.txt

What is the output of the above commands? show screen shots of the input and output. I use the terminal on my mac to run the code