在计算机操作系统发展之初，便带有命令解释器（Command Interpreter），用于接受用户的命令，并解释它们，从而与计算机进行交互。受 CTSS 和 Multics 系统的影响，Dennis Ritchie 和 Ken Thompson 在设计 UNIX 系统的时候，并没有将命令解释器作为操作系统的一部分或特权 ...

Replacing your current Linux shell with something way more user-friendly is a lot easier than you think. Let's go Fish!

Linux严格意义上说的是一个操作系统，我们称之为“核心（kernel）“ ，但我们一般用户，不能直接使用kernel。而是通过kernel的“外壳”程序，也就是所谓的shell，来与kernel沟通。 如何理解？为什么不能直接使用kernel？ 从技术角度，Shell的最简单定义：命令行解释 ...

Finally a terminal that treats modern Linux tools as the baseline, not an afterthought.

If you don't love the shell you're using on your Linux system, change it! There are plenty, including bash, fish, ksh, tcsh, zsh. There are quite a few shells on Linux system and more that can be ...

Are you familiar with Huffman encoding? That’s where you pick shorter codes for more frequent letters. Morse code is the same way, in that the most-used letters are the shortest. [Matheus Richard] had ...

Once you’ve gained a solid understanding of Linux and mastered the various commands available, your next big win comes in the form of shell functions. Code wrapped in a function can be reused by your ...

Welcome back to Linux.Ars! We have some good stuff for you this week. Axel Liljencrantz has written a helpful introduction to the Friendly Interactive Shell (Fish), a unique and innovative command ...

Linux is a tried-and-true, open-source operating system released in 1991 for computers, but its use has expanded to underpin systems for cars, phones, web servers and, more recently, networking gear.