Raspberry PI Setup commands

Question

I am having some trouble with this setup

Raspberry PI Setup

I am sure it is simple, but considering that I am new to using a mac and its terminal, some things are not so linear for me.

For example, after adding the two lines:

i2c-bcm2708

i2c-dev

Do I type :x to save and exit to then move on to the next sudo command?

After typing the second sudo command $ sudo vi /etc/modprobe.d/raspi-blacklist.conf what are the correct steps to commenting out the blacklist?

Could someone please help me with the exact bash commands necessary to complete this setup?

Answer 1

For commenting out the lines in a file, you could use sed ,

sudo sed -ni '/i2c-bcm2708/s/^/#/p' /etc/modprobe.d/raspi-blacklist.conf

Example:

$ sed -n '/i2c-bcm2708/s/^/#/p' file
#<TH bgcolor=#7070ff>DATAbase</th> i2c-bcm2708

It comment out the line which contains the string i2c-bcm2708 .

I added sudo because /etc directory would be owned by root. To edit the files owned by root, you need super user do( sudo ) privilege.