http://code.activestate.com/recipes/tags/macbook_pro-linux/2014-12-19T20:01:30-08:00ActiveState Code Recipes2014-12-19T20:01:30-08:00Barry Walkerhttp://code.activestate.com/recipes/users/4177147/http://code.activestate.com/recipes/578986-obfuscation-in-bash-shell/

<p style="color: grey"> Bash recipe 578986 by <a href="/recipes/users/4177147/">Barry Walker</a> (<a href="/recipes/tags/apple/">apple</a>, <a href="/recipes/tags/bash/">bash</a>, <a href="/recipes/tags/macbook_pro/">macbook_pro</a>, <a href="/recipes/tags/obfuscation/">obfuscation</a>). </p> <p>IMO, the immense power of the shell...</p> <p>Please let me know if there is any other human readable language that can do this...</p> <p>The DEMO code below was an idea I formed to see how to make a bash script very difficult to hack.</p> <p>Everything in it is made easy to read so as to see this idea working.</p> <p>It uses bash variables ONLY and although I have used bash loops to create the variables in this DEMO you could create your own set of variables and 'source' them to the the obfuscated code before running the main body of the code.</p> <p>It also goes without saying that you could obfuscate the changing of any or all the variable allocations at any time AFTER the code runs to make it even more obfuscated and as may times as you wish...</p> <p>I would be seriously difficult to actually write a lsrge bash app' using this method but boy oh boy would it be fun?!?</p> <p>Testbed:- Macbook Pro, OSX 10.7.x and above, using default bash terminal...</p> <p>LBNL, yeah I am aware of 'eval' but as it is obfuscated and can have as many obfuscated variables as I wish allocated to it then why worry... ;o)</p> <p>Enjoy finding simple solutions to often very difficult problems...</p> <p>Bazza...</p>

2014-11-08T19:10:58-08:00Barry Walkerhttp://code.activestate.com/recipes/users/4177147/http://code.activestate.com/recipes/578960-not-quite-so-simple-quicktime-player-python-audio-/

<p style="color: grey"> Python recipe 578960 by <a href="/recipes/users/4177147/">Barry Walker</a> (<a href="/recipes/tags/apple/">apple</a>, <a href="/recipes/tags/audio/">audio</a>, <a href="/recipes/tags/audio_capture/">audio_capture</a>, <a href="/recipes/tags/capture/">capture</a>, <a href="/recipes/tags/macbook_pro/">macbook_pro</a>, <a href="/recipes/tags/maccbook_pro/">maccbook_pro</a>, <a href="/recipes/tags/sample/">sample</a>, <a href="/recipes/tags/signal_capture/">signal_capture</a>). </p> <p>Not Quite So Simple QuickTime Player, Python Audio Capture.</p> <p>This DEMO code captures a function to generate a user 5 second Audio sample in Apple *.aifc format. It is then converted to DC quailty *.WAV format.</p> <p>It uses default shell system files to do the task.</p> <p>An AppleScript is created to do the sample but due to the limitations of QT Player there is a 1.5 second delay to allow QuickTine Player to start up. It is not entirely quiet but unobtrusive enough as to be like quiet mode...</p> <p>This is again a means a signal capture for an AudioScope without the need for special tools or installs.</p> <p>Read the code for more information.</p> <p>IMPORTANT!!! This DEMO WILL delete all *.aifc files inside the default $HOME/Movies directory, so be aware.</p> <p>A simple ALSA one is on its way too...</p> <p>It actually works on Python 3.4.1 but I have no idea if it works below Python 2.5.6...</p> <p>Bazza...</p>

2014-09-16T22:27:04-07:00Barry Walkerhttp://code.activestate.com/recipes/users/4177147/http://code.activestate.com/recipes/578934-a-fun-perfect-square-checker-using-integer-arithme/

<p style="color: grey"> Bash recipe 578934 by <a href="/recipes/users/4177147/">Barry Walker</a> (<a href="/recipes/tags/arithmetic/">arithmetic</a>, <a href="/recipes/tags/bash/">bash</a>, <a href="/recipes/tags/check/">check</a>, <a href="/recipes/tags/checker/">checker</a>, <a href="/recipes/tags/cygwin/">cygwin</a>, <a href="/recipes/tags/macbook_pro/">macbook_pro</a>, <a href="/recipes/tags/math/">math</a>, <a href="/recipes/tags/mathematics/">mathematics</a>, <a href="/recipes/tags/perfect/">perfect</a>, <a href="/recipes/tags/root/">root</a>, <a href="/recipes/tags/square/">square</a>). </p> <p>A recent Python upload here gave me the inspiration to do a bash version... This is a little tongue-in-cheek but an enjoyable bit of fun.</p> <p>It took around 11 seconds to prove 90000000000 had a perfect square of 300000...</p> <p>It is a stand alone program and has a degree of INPUT error correction...</p> <p>It was done on a MacBook Pro, OSX 10.7.5, default bash terminal and should work on Linux flavours but it is untested...</p> <p>Enjoy finding simple solutions to often very difficult problems...</p> <p>Bazza...</p>

2013-07-17T17:40:18-07:00Barry Walkerhttp://code.activestate.com/recipes/users/4177147/http://code.activestate.com/recipes/578610-a-simple-clock-well-maybe-not-that-simple/

<p style="color: grey"> Bash recipe 578610 by <a href="/recipes/users/4177147/">Barry Walker</a> (<a href="/recipes/tags/apple/">apple</a>, <a href="/recipes/tags/clock/">clock</a>, <a href="/recipes/tags/digital/">digital</a>, <a href="/recipes/tags/digits/">digits</a>, <a href="/recipes/tags/display/">display</a>, <a href="/recipes/tags/large/">large</a>, <a href="/recipes/tags/macbook_pro/">macbook_pro</a>, <a href="/recipes/tags/readout/">readout</a>, <a href="/recipes/tags/terminal/">terminal</a>). </p> <p>Hi all...</p> <p>Do you remember this little snippet?</p> <p><a href="http://code.activestate.com/recipes/578079-pure-fun-for-text-mode-python/?in=user-4177147" rel="nofollow">http://code.activestate.com/recipes/578079-pure-fun-for-text-mode-python/?in=user-4177147</a></p> <p>Well it was voted down, but who cares? I surely don't! So to those that voted this FUN piece of Python coding down, you are now about to see what the aim was.</p> <p>However although I have subsequently done what I said I would, that is, to create large digits as an _at_a_glance_ digital readout for a project in Python I have decided not to upload it. However I have decided to let this one go as a bash/shell script instead.</p> <p>It is a nothing but a simple clock, well, maybe not that simple; but as I am into shell stuff at the moment I thought I would share this with you.</p> <p>The terminal does have its colours changed and the cursor disabled for the session but I expect you big guns to be able to return back to normal in a jiffy.</p> <p>I am an amateur coder and if that is easy for me then you pros should have no problems.</p> <p>This code is not like most of my other stuff as is NOT Public Domain...</p> <p>It is only a DEMO to see what an at a glance display would look like in a terminal.</p> <p>Move away to a distance and see which of the two time readings you can still read... ;o)</p> <p>It is for a Macbook Pro 13" OSX 10.7.5 and uses bash imode. It will probably work on most Linux machines too but I haven't tested it...</p> <p>This is purely a DEMO only and any other special effects, (e.g. flashing colon every second), alram, etc, I have already experimented with and is easy enough to do...</p> <p>My intention is to use this as a kids level text mode digital voltmeter I am doing.</p> <p>Enjoy...</p> <p>Bazza...</p>

2012-10-07T14:15:55-07:00Barry Walkerhttp://code.activestate.com/recipes/users/4177147/http://code.activestate.com/recipes/578282-for-macbook_pro-heads-only-simple-lf-audio-oscillo/

<p style="color: grey"> Python recipe 578282 by <a href="/recipes/users/4177147/">Barry Walker</a> (<a href="/recipes/tags/anim/">anim</a>, <a href="/recipes/tags/apple/">apple</a>, <a href="/recipes/tags/audio/">audio</a>, <a href="/recipes/tags/demo/">demo</a>, <a href="/recipes/tags/display/">display</a>, <a href="/recipes/tags/macbook_pro/">macbook_pro</a>, <a href="/recipes/tags/oscilloscope/">oscilloscope</a>, <a href="/recipes/tags/pyaudio/">pyaudio</a>, <a href="/recipes/tags/scope/">scope</a>, <a href="/recipes/tags/sound/">sound</a>). </p> <p>For MacBook_Pro-Heads Only. Simple LF Audio Oscilloscope Using Standard Text Mode Python.</p> <p>SimpleScope_OSX.py</p> <p>Do you remember this upload from myself on 26-06-2011...</p> <p><a href="http://code.activestate.com/recipes/577771-simple-lf-audio-oscilloscope-using-standard-text-m/?in=user-4177147" rel="nofollow">http://code.activestate.com/recipes/577771-simple-lf-audio-oscilloscope-using-standard-text-m/?in=user-4177147</a></p> <p>Well here is an August 2012 vintage MacBook Pro 13 inch version of it for OSX 10.7.5...</p> <p>This is proof of concept code for a kids level project I am doing for a MacBook Pro, 13 inch, OSX 10.7.5. A DEMO to show how to display a waveform using standard text mode Python. "pyaudio" must be installed for this to work. Levels are set using the standard audio mixers, (System Preferences -> Sound).</p> <p>Just whistle a signal of say 300Hz to 3KHz, (normal voice spectrum), using say, the internal mic, and watch a waveform appear inside the X-Y graticule.</p> <p>Read the code for more information.</p> <p>$VER: SimpleScope_OSX.py_Version_0.00.10_(C)2012_B.Walker_G0LCU.</p> <p>This code is GPL2, but, the hardware information is Public Domain.</p> <p>(I am looking into including Windows and Linux variants too using pyaudio to access the sound system.)</p> <p>Enjoy finding simple solutions to often very difficult problems.</p> <p>Bazza, G0LCU...</p>