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Computer/linux

• Convert video into jpeg or pngs

  Computer/linux 2008. 6. 8. 12:02

  mplayer -vo jpeg (png) test.avi

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• Skype static

  Computer/linux 2008. 5. 23. 00:33

  I am using ubuntu 6.10 and ubuntu 8.04 on two different machines (32bit and 64bit). Unfortunately, there is no way to install the recent skype version 2.0.0.68. Thus, I found the static version and it works on two machines. If you want to get this, follow http://www.skype.com/go/getskype-linux-static

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• Simple firewall program - Firestarter

  Computer/linux 2008. 4. 26. 19:11

  Xterm or Gnome terminal 1. apt-cache show firestarter Package: firestarter Priority: optional Section: universe/admin Installed-Size: 1964 Maintainer: Ubuntu MOTU Developers Original-Maintainer: Paul Cupis Architecture: amd64 Version: 1.0.3-6ubuntu3 Depends: gconf2 (>= 2.10.1-2), gksu (>= 0.8.5), iptables (>= 1.2.11), libart-2.0-2 (>= 2.3.18), libatk1.0-0 (>= 1.20.0), libbonobo2-0 (>= 2.15.0), l..

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• How to know the size of array [] in C

  Computer/linux 2008. 4. 23. 21:42

  int sz, array[] = {1,2,3,4,5}; sz = sizeof(array)/sizeof(int); for(i = 0;i < sz; i++ ) {..................} const char *const canvas_type[6] = { "A", "B", "C", "D", "E", "F" }; int sz = sizeof(canvas_type)/sizeof(char*); With 64 bit AMD machine, the above mathod has a compiled problem.

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• How to empty out the trash bin with the wrong permission.

  Computer/linux 2008. 4. 23. 07:57

  Sometime I cannot empty out my deleted files in the trash due to the permissions. Then go to .local/share/Trash , delete all files and directories with sudo or su permission.

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• How to install a new latex style file in the local directory (ubuntu)

  Computer/linux 2008. 4. 17. 05:20

  mkdir texmf mkdir texmf/tex mkdir texmf/tex/latex scp algorithms.zip texmf/tex/latex/ cd texmf/tex/latex/ unzip algorithms.zip Archive: algorithms.zip creating: algorithms/ inflating: algorithms/COPYING inflating: algorithms/README inflating: algorithms/THANKS inflating: algorithms/algorithm.sty inflating: algorithms/algorithmic.sty inflating: algorithms/algorithms.pdf inflating: algorithms/algo..

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• tvtime configuration file

  Computer/linux 2008. 4. 16. 11:10

  TVcard sound output connects with line-in of the sound card. open tvtime : Line-in -> Activate (de-mute) close tvtime : Line-in -> Deactivate (mute)

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• How to convert wav to mp3 or flac with ffmpeg and with lame.

  Computer/linux 2008. 3. 31. 22:56

  lame -h input.wav output.mp3 -h Use some quality improvements. Encoding will be slower, but the result will be of higher quality. The behaviour is the same as the -q 2 switch. This switch is always enabled when using VBR. http://lame.sourceforge.net/ ffmpeg -i input.wav -ab 64 -ac 1 -ar 44100 output.mp3 Note that the output detailed format is MPEG Layer II. ffmpeg -i input.wav -ab 64 -ac 1 -ar 4..

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