I have a problem with using tabix-0.2.6. Since I am going to use VCFtools, I need to install and use tabix-0.2.6 to compress and index vcf files. I download the latest version of tabix (tabix-0.2.6.tar.bz2.1) and decompress the software with command "tar xjvf" . Then I tried using the command "bgzip my_file.vcf" to compress my vcf file but ended up with an error "tabix: command not found". I think I need to add some paths in order to achieve this but I don't know how. I am just a beginner in NGS data analysis, so this question may seem silly. Actually the "PATH" problem have been one of my big problem, I tried hard to search on line to find a solution. But until now I still did not get. However, please kindly help me out with this question. Your help will be greatly appreciated.