I've read this while I was a student messing up with gnu/linux and sometimes writing shell scripts and after having worked as gnu/linux sysadmin reading and wri

I've read this while I was a student messing up with gnu/linux and sometimes writing shell scripts and after having worked as gnu/linux sysadmin reading and writing shell scripts for a living. It's amazing to see how many shell pearls and tricks these pages are interspersed with.