Make a file Executable

Unlike Windows, Linux does not have files that are executable, all files can have this attribute. So for example, I have a python file that is just a text file, and I will to be able to run this from the command line, If I look at the file using ls -al:

ls -al

I will see something like this:

rw-r–r– 1 pi pi 4452 Jul 25 17:46 40x2_LCD.py

The permissions for this file are:

rw-r–r–

This file has three sets of permissions:

User -rw | Group -r- | Others r--

To edit the dhcpcd.conf file, enter:

sudo /etc/dhcpcd.conf

At the end of the file add the following lines (with your own IP Address values)

eth0