In all , throughout this series , we will get to know cat and tac ; head and tail ; sort and uniq - and will discuss the dumping , folding , splitting , indexing , and other capabilities of some of the most common unix and linux text utilities 通過本系列文章,我們將了解cat和tac ; head和tail ; sort和uniq還將討論轉(zhuǎn)儲、建立文件夾、分割、建立索引和其它一些最常用的unix和linux文本實用程序的功能。