As you begin to write programs and build files, you will eventually need help in finding your files and folders. This is where the Linux “find” command comes in. In this video we explore use of the find command and demonstrate how use of find with wildcards and pipes creates a powerful combination.
Raspberry Pi Linux LESSON 14: Using Linux Tee and Pipe Command
Raspberry Pi Linux LESSON 13: Using Linux Pipes
Just as pipes are used in the real world to connect one tank to another, in Linux we can use pipes to connect one command to another. With a pipe, we can take the output of one command and “pipe” it to become the input of another command. Pipes are one of the really powerful techniques that can be used in Linux, and this video shows you how to use them.
Raspberry Pi with Linux LESSON 12: More about the Linux Path commands
Raspberry Pi with Linux LESSON 11: Fixing Problem with Keyboard and Special Characters
The standard boot configuration of the Raspberry pi can lead to some characters not working properly on US keyboards. In particular, the shift-number characters like !,~,# can not be where you expect them. The easiest way to fix this is to edit the nano /etc/default/keyboard file. The following should fix things for you.
$ sudo nano /etc/default/keyboard
Then on the line for XKBLAYOUT change it to:
XKBLAYOUT=”us”
That should make your pi work properly with most US keyboards.