Journal: OPLC in vain

Please be patien to read my story with linux first. I always call my machine, launching Linux only, linux box or my box. It is my, not box only. I always enjoy my computer in a normal user and switch to root with "su" when need to do system-wide maintaining work. I compile all the software with "./configure --prefix=/usr/local/xxx" and then make a link to it from /usr/local/bin. The updating work for this software is quite easy--just delete the directory for it, sometimes some