Tag Archives: Linux

Linux Shell- command history

NB : Please note that this post follows on from Linux Shell command tricks The second of the tools available for the command line interface to a Linux shell is command History, Just like Command and file completion this set … Continue reading

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Linux Shell command tricks – Command completion

The power of the command line in Linux Distributions is still very much at the forefront, many admin task can simply be performed much more efficiently this way. This faster command entry speed, for admin tasks is true even by … Continue reading

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Looking at shells, internal and External commands

This Study area follows on from this Post , Using Linux Shells Each of the available command shells in Linux has two primary types of commands, Internal or External. Internal By saying a command is Internal, these commands are fully … Continue reading

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I/O Addresses and I/O memory

Please note that this post follows on from : IRQ’s and Interrupts I/O Addresses and I/O memory relate to bi-directional Communications between (CPU/Computer to devices ) as opposed to IRQ’s/Interrupt’s which are one way (device to CPU/Computer) communications. Communication via … Continue reading

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Raspberry Pi Sense Hat, Locating and using the sense-hat.py module

Raspberry pi sense hat modules In my last post I introduced the Raspberry Pi sense hat, a hardware module for the Raspberry pi development board that contains the following hardware. 8×8 RGB LED matrix, five-button joystick, 40 pin pass-through GPIO … Continue reading

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Raspberry Pi 3 – A first look

7/3/2016, and this morning I received a Raspberry Pi model 3 in the post from New-IT. It has been unintentionally far to long since I posted here on my blog and receiving the new Raspberry Pi is a great time … Continue reading

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Linux Software Repositories

Linux Software Repositories One of the key strengths of Linux as an Operating system is the large amount of software that is freely available for installation, much like the Android Apps Store but with a greater history. The main difference … Continue reading

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Linux command shells

Unix and Linux command shells Within the Unix and Linux operating systems , a command shell is an operating system service/application that takes commands from a terminal emulator program or from a script source file and performs any given commands … Continue reading

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Linux Professional Institute Study Guide (LIC-1)

LPIC-1 Linux Professional Institute Certification Study Guide: Exam 101-400 and Exam 102-400, 4th Edition Christine Bresnahan, Richard Blum ISBN: 978-1-119-02118-6 As we are now well into the month of September, the month that traditionally all students start or get back … Continue reading

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Hexadecimal file editors and viewers

In my last post I talked a little about the numeric base systems of (Binary, Octal, Hex-decimal and Decimal) relating them to both computer machine level instruction code and application data. However these mathematical concepts are a little hard to … Continue reading

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