Question I've been getting more and more comfortable using vi on a daily basis, but one thing that bothers me is that when I use it on Ubuntu it behaves differently than when I use it on CentOS (and probably other places). I actually prefer the way it works in CentOS. Here are three things that are really bothering me on Ubuntu: In CentOS insert mode there is a big bold notice at the bottom that I'm in INSERT mode, but in Ubuntu there is no notice so I can never tell which mode I'm in.…

Question I am a Linux n00b trying to setup my development environment in Eclipse. I have Eclipse and the Android SDK installed, but I am getting some errors when I start Eclipse or when I try to run ./aapt or ./adb. jason@ubuntu:~/usr/android-sdk-linux_x86/platform-tools$ ./aapt ./aapt: error while loading shared libraries: libz.so.1: cannot open shared object file: No such file or directory jason@ubuntu:~/usr/android-sdk-linux_x86/platform-tools$ ./adb ./adb: error while loading shared libraries: libncurses.so.5: wrong ELF class: ELFCLASS64 That ELF class error makes me think I installed a wrong version of the software but I do not recall being asked to choose between x86 and x86-64.…

Question Am trying to use docker-compose command and bring up container. But am facing error INTERNAL ERROR: cannot create temporary directory!. Am not able to pull, stop, rm or UP and container. Can anyone suggest how to resolve this? Answer I was suffering from the same issue. It turned out that I'd ran out of Disk Space. All I needed to do was clear down the old containers and images by running the below commands.…

Question I am looking for the init.py file for django. I tried whereis and find, but I get a lot of dirs. Answer you can just print it out. >>> import django >>> print django.__file__ /var/lib/python-support/python2.5/django/__init__.pyc >>> or: import inspect import django print inspect.getabsfile(django) …

Question Can I use the diff command to find out how many lines do two files differ in? I don't want the contextual difference, just the total number of lines that are different between two files. Best if the result is just a single integer. Answer diff can do all the first part of the job but no counting; wc -l does the rest: diff -y --suppress-common-lines file1 file2 | wc -l…

Question Though I have done the following setting, and even restarted the server: # head /etc/security/limits.conf -n2 www-data soft nofile -1 www-data hard nofile -1 # /sbin/sysctl fs.file-max fs.file-max = 201558 The open files limitation of specific process is still 1024/4096: # ps aux | grep nginx root 983 0.0 0.0 85872 1348 ? Ss 15:42 0:00 nginx: master process /usr/sbin/nginx www-data 984 0.0 0.2 89780 6000 ? S 15:42 0:00 nginx: worker process www-data 985 0.…

Question UPDATE 1: This was everything I did in the end: sudo aptitude install -y python-software-properties python g++ make sudo add-apt-repository -y ppa:chris-lea/node.js sudo aptitude update sudo aptitude install nodejs sudo aptitude install npm sudo npm install -g cordova sudo npm install -g phonegap phonegap create my-app cd my-app export PATH=${PATH}:/home/oshirowanen/Downloads/adt-bundle-linux-x86_64-20131030/sdk/platform-tools:/home/oshirowanen/Downloads/adt-bundle-linux-x86_64-20131030/sdk/tools sudo aptitude install ant cordova platform add android android create avd --name my_and --target 1 phonegap run android Was any of that not neccessary?…