If you totally get to the bottom of Linux shell – you’ll agree that it’s a powerful environment. Understanding of things like text manipulators, system utilities etc. makes a great deal in operations performance. But sometimes we have a desire to simplify command line toolkit. Days go by and we’re starting to notice that some mechanisms could be better. Command history search is complicated. “du” scrolling doesn’t show up a descriptive filesystem usage statistics. And sometimes instead of command line we’re picking GUI programs. Despite of we know this way as less productive.