| montage -geometry 800x600+0+0 a.png b.png a+b.png |
| beta@landlubber:~$ sudo apt-get install wireshark | |
| beta@landlubber:~$ sudo dpkg-reconfigure wireshark-common # choose yes | |
| beta@landlubber:~$ sudo usermod -a -G wireshark beta | |
| beta@landlubber:~$ sudo reboot |
| beta@landlubber:~/Software/Android/sdk/platform-tools$ ./adb devices | |
| beta@landlubber:~/Software/Android/sdk/platform-tools$ ./adb -s emulator-5554 emu geo fix -93.24 44.98 |
| # ./adb in Android Emulator doesn't work. It turns out that that executable file is 32 bit. | |
| # beta@landlubber:~/Software/Android/sdk/platform-tools$ ./adb | |
| # bash: ./adb: No such file or directory | |
| # To install 32 bit architecture in a 64 bit ubunbu 14.04 machine, do | |
| sudo dpkg --add-architecture i386 | |
| sudo apt-get -qqy update | |
| sudo apt-get -qqy install libncurses5:i386 libstdc++6:i386 zlib1g:i386 | |
| ./adb install ~/workspace/facebook-android-sdk-3.8.0/bin/FBAndroid-7.0.0.apk | |
| # It works :-) |
| # Error looks like "Failed to start emulator: Cannot run program "/home/beta/ | |
| # Software/Android/sdk//tools/emulator": error=2, No such file or directory". | |
| # As people suggested, it works after | |
| beta@landlubber:~/Software/Android/sdk/tools$ mv emulator emulator.bak | |
| beta@landlubber:~/Software/Android/sdk/tools$ ln -s emulator64-arm emulator |
| # installation | |
| sudo apt-get install honeyd | |
| sudo apt-get install nmap #(supported software for port scanning) | |
| # check my eth0 address | |
| ifconfig | |
| ### eth0 Link encap:Ethernet HWaddr 00:26:2d:f9:db:be <-----------------use this one | |
| ### inet addr:192.168.0.103 Bcast:192.168.0.255 Mask:255.255.255.0 | |
| ### inet6 addr: fe80::226:2dff:fef9:dbbe/64 Scope:Link | |
| sudo apt-get clean # cleaning up of the apt cache. it gives me roughly 500MB cache | |
| sudo apt-get purge linux-image-3.5.0-37-generic # roughly 100MB per removed kernal. kernal list is in /boot/. |
| sudo apt-get install libglib2.0-dev | |
| sudo apt-get install libgtk2.0-dev #optional | |
| cat >hello.c <<EOL | |
| #include <glib.h> | |
| int main () { | |
| return 0; | |
| } | |
| EOL | |
| gcc `pkg-config --cflags glib-2.0` hello.c `pkg-config --libs glib-2.0` -o hello |
My ubuntu just detects all .m files as Objective-C source code (text/x-objcsrc), so I'd like to add matlab mine.types to it. So I sudo gedit /etc/mime.types and add a line text/x-matlab m. If I want to automatically start matlab IDE, I should also add application/matlab m.
However, it seems not working at least in Ubuntu 12.04.
I accidentally installed multiple versions of MPI's (openmpi, mpich2, ...) in my Ubuntu 12.04 machine. I removed them all, and installed openmpi again; however, after fixing that (I never try before that), my MPI always gives rank=0, size = 1. The reason is that the removal process is incomplete, hence causes file sharing conflict. It can be seen from the following test
beta@landmark:~$ whereis mpicc
mpicc: /usr/bin/mpicc.mpich2 /usr/bin/mpicc.openmpi /usr/bin/mpicc
/usr/bin/X11/mpicc.mpich2 /usr/bin/X11/mpicc.openmpi /usr/bin/X11/mpicc
/usr/share/man/man1/mpicc.1.gzIt turns out that the packages libmpich2-3 and libmpich2-dev failed to be removed. So after apt-get remove libmpich2-3 libmpich2-dev, everything goes fine.