exercises-solutions.md

Command Line Exercise Solutions

Exercise 1

mkdir backend-class

cd backend-class

mkdir exercises

cd exercises

mkdir command-line

cd command-line

touch hello.txt

Exercise 2

mv ~/Downloads/bacon.txt ~/terminal-exercises/veggies.txt

grep -oni nomnomnom ~/terminal-exercises/veggies.txt

The result of the grep should be:

5:nomnomnom
15:nomnomnom
25:nomnomnom
31:nomnomnom
39:NOMNOMNOM

Exercise 3

cd ~/backend-class/terminal-exercises

mkdir permissions

touch my-file.txt

vim my-file.txt

Add a few lines of text -- whatever you want.

• Don't forget to enter insert mode in vim by pressing the i key
• Shift + ZZ to close and save the file with your changes

chmod 400 my-file.txt

To check the result of the chmod change: ls -alt ./permissions

This should be the result:

-r-------- 1 Brenna staff 0 Jun 27 16:58 myfile.txt

Exercise 4

This is an example of an alias that will accomplish all of the exercise objectives:

alias kapow='mkdir shazam && cd $_ && touch magic-wand.txt && echo -e "1\n2\n3\n4\n5" >> magic-wand.txt'