I have shifted from Windows to GNU/Linux in 2013. I like command-line and especially text-processing (with grep, awk, sed etc..). I know the history and philosophy of GNU/Linux operating systems. I often write small bash scripts to accomplish some tasks. I run Debian based operating systems and use GNOME, KDE and MATE Desktop Environments. I know the Debian package management. I have adopted many Free/Libre and Opensource softwares in day to day computing. I can help you with computing on GNU/Linux, with question-answer on it, Writing articles on GNU/Linux.