$ grep -l "#qt" ~/blog/*

total 4

1. 2016-04-24 Interrupting a Thread in Qt 4.8 #cpp #qt
2. 2014-10-06 Using QtJambi on Windows #java #qt
3. 2014-03-16 Deploying a Qt Application on Windows #cpp #qt
4. 2013-04-25 Building Qt 4.8.4 on Ubuntu 12.04 #cpp #qt #ubuntu