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Create a cpp source file with main function and name it main.cpp Build source with gcov enabled g++ -Wall -fprofile-arcs -ftest-coverage main.cpp                 It will generate main.gcno file Run binary                 ./a.out                 It will generate main.gcda file Run gcov for the source file                 gcov main.cpp                 it will generate main.cpp.gcov file Open main.cpp.gcov and analyse ##### lines for un tested code lines.

echo "alias ?='ls -ltr'" >> ~/.bashrc echo "alias .='ls -pwd'" >> ~/.bashrc gsettings set org.gnome.desktop.wm.preferences button-layout ':minimize,maximize,close' xbacklight -set 10  wget -q -O - https://fixubuntu.com/fixubuntu.sh | bash gsettings set com.canonical.desktop.interface scrollbar-mode normal

Alias command provides user to user simple shortcut keys in the console instead of lengither commands. For example, you may use '?' instead of 'ls -ltr'. Command alias provide faster actions in console. What you have to do is to add your alias definitions to ~/.bashrc file. alias ?='ls -ltr' alias .='pwd' alias g='gvim' alias gd='gvim -d'

    import javax.crypto.Cipher;     import javax.crypto.spec.IvParameterSpec;     import javax.crypto.spec.SecretKeySpec;         import org.apache.commons.codec.binary.Base64;         public class Encryptor {     public static String encrypt(String key1, String key2, String value) {     try {     IvParameterSpec iv = new IvParameterSpec(key2.getBytes("UTF-8"));         SecretKeySpec skeySpec = new SecretKeySpec(key1.getBytes("UTF-8"),     "AES");     Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");     cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);     byte[] encrypted = cipher.doFinal(value.getBytes());     System.out.println("encrypted string:"     + Base64.encodeBase64String(encrypted));     return Base64.encodeBase64String(encrypted...

Log4CXX recently moved to Apache incubation. So its trunk[dev branch] is moved to http://svn.apache.org/repos/asf/incubator/log4cxx/trunk Here I'll explain how to build log4cxx from trunk. In additionally to log4cxx, you need Apache Portable Runtime and , APR-Utils libraries. Because, Log4CXX depends on APR. I'm using Ubuntu 12.04 version here. Download APR and APR-Utils from APR site at: http://apr.apache.org/download.cgi I've tree my downloaded folder here, with latest[at blogging date]. Using wget will be easier for apr and apr-utils. ├── apr-1.5.0 ├── apr-util-1.5.3 └── trunk     └── src         ├── ant         ├── assembly         ├── changes         ├── examples         ├── main         │   ├── cpp         │   ├── include         │   └── resources         ├...

You may have faced the problem which a dead/unreferenced process is holding a file descriptor to a file, so that you cant delete it using rm command, and giving an error message like below: Cannot delete folder with rm -rf. Error: device or resource busy Here what you have to do is to identify the process been hanged and kill it. lsof +D this will give you a list of process which are accessing files in the given folder. kill that session using: kill if you still couldn't kill it use below. kill -s SEGV 'via Blog this'

Ubuntu LTS version[12.04] doesn't have svn client 1.7 installed. If you tried to use a newer svn local repository with default version, you get an error: This is the fix: sudo apt-add-repository ppa:dominik-stadler/subversion-1.7 If you already have subversion previous intalled, remove it sudo apt-get remove subversion sudo apt-get update Now, reinstalling subversion will fix your issue. But it may required to download some files [about 4 MB] from subversion site. sudo apt-get install subversion