Geeks-Plug-ins

dpkg --get-selections | grep apache It lists all installed packages that contain "apache" in their name. For example: apache2 install apache2-doc install apache2-mpm-prefork install apache2-utils install apache2.2-bin install apache2.2-common install libapache2-mod-php5 install libapache2-svn install It indicates that the package apache2 is installed on the system. Another approach, to find any running HTTP daemon on the default port would be: sudo lsof -nPi | grep ":80 (LISTEN)" Which lists something like: apache2 1026 root 4u IPv6 3739 0t0 TCP *:80 (LISTEN) apache2 3966 www-data 4u IPv6 3739 0t0 TCP *:80 (LISTEN) apache2 4014 www-data 4u IPv6

Install required libraries (for 64-bit system) Skype website only provides 32-bit package for Ubuntu 12.04 and higher. You’re unable to install it directly on 64-bit system due to dependencies issue. However, install the old skype from Canonical partners repository will also install the required libraries we need for NEW skype. Follow steps a, b, c mentioned below : a.) Press Ctrl+Alt+T on keyboard to open terminal. When it opens, run commands one by one to remove old skype and .skype folder: sudo apt-get remove skype skype-bin rm -rf ~/.skype b.) Open “Software & Updates” and enable Canonical partners repository under Other Software tab. c.) Press Ctrl+Alt+T on keyboard to open terminal. When it opens, run the commands below to install old skype: sudo apt-get update; sudo apt-get install skype   For more details check : link