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Hey all, I have completed another video of the Linux course on YouTube, criticism welcome. Let me know what you think and what else may be a good thing to cover for future videos. https://www.youtube.com/watch?v=zCCZzsIk-DY Thanks, Shaun. submitted by SMKS [link] [comment]

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posted 1 day ago on reddit
Forgive me, Im still getting familiar with linux piping. My objective is to find all text references to an array of regexp patterns. My logic was going to be something like: find all files meeting some criteria (any .txt file) look within file and see if any of the patterns are matched (example /\[dbo\].\s+/) if match, return the filename, match, and line number write the results to a file Im familiar with regexps, and general linux commands but Im having trouble. Im guessing thats some combination of ls, grep, and fgrep. But Im having trouble visualizing how to implement this. submitted by luciferprinciple [link] [comment]

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posted 2 days ago on reddit
I'm stumped, and I don't like being stumped, but I'm willing to admit when I'm completely out of my breadth. I have been dipping my toe in the linux pond for almost a year now, and I finally took the plunge! I installed Ubuntu 14.04 on my second drive, a 500gb HDD (I have my main drive as a 240gb SSD). I tried to get my graphics card set up, using some "how-to" on the internet, and then it wouldn't boot... Yes, I blindly followed some cryptic instructions and ruined my first linux install VERY quickly - I hear that's a rite of passage, though. So I just did a quick reformat. I followed a new install procedure that required some crazy ctrl+alt+F1 command stuff which I felt SUPER hacker-esque pulling off, and got the card drivers installed! And I rebooted the machine, and everything was a DREAM! Windows moved around smoother, everything was a little bit sharper and quicker, it was a DREAM! My pride was intoxicating. I decided to celebrate by installing Steam and downloading a bunch of the new exciting Linux-friendly games that are available. I downloaded a small one first - Element4l, and loaded it up. The game starts completely normally, and then I decide to restart the first level. This is LITERALLY 20 seconds into the game. Frozen. I can hear the music from the game, and I can move my cursor around, but no clicks register anything. Every now and then my mouse moves a little bit, then freezes for a bit. A strange kind of slow stutter-freeze. No abnormal sounds from the tower, the fans aren't working super hard or anything, no clicking or beeping. I reboot and try to get the game to work, but nothing works. In fact, this problem seems worse now, I can't even get into the 1st stage without it freezing up, and requiring me to manually reset (no commands or clicks register). So I stop trying anything graphic intensive, and settle for some reading. I find glmark2, and decide to run a benchmark and see what happens. These are the results... glmark2 2012.08 OpenGL Information GL_VENDOR: NVIDIA Corporation GL_RENDERER: GeForce GTX 670/PCIe/SSE2 GL_VERSION: 4.4.0 NVIDIA 340.58 [build] use-vbo=false: FPS: 10288 FrameTime: 0.097 ms [build] use-vbo=true: FPS: 17424 FrameTime: 0.057 ms [texture] texture-filter=nearest: FPS: 7168 FrameTime: 0.140 ms [texture] texture-filter=linear: FPS: 13039 FrameTime: 0.077 ms [texture] texture-filter=mipmap: FPS: 1156 FrameTime: 0.865 ms [shading] shading=gouraud: FPS: 5248 FrameTime: 0.191 ms [shading] shading=blinn-phong-inf: FPS: 5221 FrameTime: 0.192 ms [shading] shading=phong: FPS: 1101 FrameTime: 0.908 ms [bump] bump-render=high-poly: FPS: 0 FrameTime: inf ms [bump] bump-render=normals: FPS: 0 FrameTime: inf ms [bump] bump-render=height: FPS: 0 FrameTime: inf ms [effect2d] kernel=0,1,0;1,-4,1;0,1,0;: FPS: 0 FrameTime: inf ms [effect2d] kernel=1,1,1,1,1;1,1,1,1,1;1,1,1,1,1;: FPS: 0 FrameTime: inf ms [pulsar] light=false:quads=5:texture=false: FPS: 0 FrameTime: inf ms [desktop] blur-radius=5:effect=blur:passes=1:separable=true:windows=4: FPS: 0 FrameTime: inf ms [desktop] effect=shadow:windows=4: FPS: 0 FrameTime: inf ms [buffer] columns=200:interleave=false:update-dispersion=0.9:update-fraction=0.5:update-method=map: FPS: 0 FrameTime: inf ms [buffer] columns=200:interleave=false:update-dispersion=0.9:update-fraction=0.5:update-method=subdata: FPS: 0 FrameTime: inf ms [buffer] columns=200:interleave=true:update-dispersion=0.9:update-fraction=0.5:update-method=map: FPS: 0 FrameTime: inf ms [ideas] speed=duration: FPS: 0 FrameTime: inf ms [jellyfish] : FPS: 0 FrameTime: inf ms [terrain] : FPS: 0 FrameTime: inf ms [conditionals] fragment-steps=0:vertex-steps=0: FPS: 0 FrameTime: inf ms [conditionals] fragment-steps=5:vertex-steps=0: FPS: 0 FrameTime: inf ms [conditionals] fragment-steps=0:vertex-steps=5: FPS: 0 FrameTime: inf ms [function] fragment-complexity=low:fragment-steps=5: FPS: 0 FrameTime: inf ms [function] fragment-complexity=medium:fragment-steps=5: FPS: 0 FrameTime: inf ms [loop] fragment-loop=false:fragment-steps=5:vertex-steps=5: FPS: 0 FrameTime: inf ms [loop] fragment-steps=5:fragment-uniform=false:vertex-steps=5: FPS: 0 FrameTime: inf ms [loop] fragment-steps=5:fragment-uniform=true:vertex-steps=5: FPS: 0 FrameTime: inf ms glmark2 Score: 2021 A few good benchmarks and then total failure - so I THINK it's obvious that for some reason my graphic processing is going out the window. I tried to reproduce this, but the computer just locked up and didn't finish the test. I don't know why that one attempt worked and the rest don't, but I am glad I saved the numbers (although that final result seems high considering the whole test failed... no?) The rest of my rig: Intel Core i5-3570K@3.40GHz 15.6GB of Kingston HyperX RAM 64-bit Ubuntu 14.04 3xMonitor set-up, two on DVI and one from DisplayPort to DVI using an active adapter (this worked with Ubuntu out of the box and I was very surprised). I gamed with this set-up on Windows for over a month before installing Linux. I no longer have an old graphics card to troubleshoot with. Onward to solutions! I need a hero because I have no clue where to go with this diagnosis. Any help or advice appreciated. If I've left out anything vital please ask! I'll add it asap. I won't be available to run diagnostics during the day tomorrow but I'll be able to figure it out in the evening. Thanks in advance, Reddit! submitted by GoodRedd [link] [comment]

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