The Bourne shell (sh) is a shell command-line interpreter for computer operating systems. It first appeared on Version 7 Unix, as its default shell. Unix-like systems continue to have /bin/sh —which will be the Bourne shell, or a symbolic link or hard link to a compatible shell—even when other shells are used by most users.

If /bin/sh is not the POSIX compatible shell command itself, it must be a hard or symbolic link to the real shell command. The [ and test commands must be placed together in either /bin or …

These new commands have the same status as system commands in directories such as /bin, allowing users or groups to establish custom environments to automate their common tasks. Shells may be used interactively or non-interactively. In interactive mode, they accept input typed from the keyboard.

2019年3月1日 · 本文探讨了Bash和Sh两种Unix Shell之间的区别，包括它们的历史背景、功能特性及执行脚本的方式。 详细分析了#!/bin/bash和#!/bin/sh在脚本解释上的不同，以及如何在系统中更改默认Shell。 摘要生成于 C知道 ，由 DeepSeek-R1 满血版支持， 前往体验 > bash 是一个为GNU计划编写的Unix shell。 它的名字是一系列缩写：Bourne-Again SHell — 这是关 …

2024年3月18日 · On most Linux systems, sh is a symlink to the actual implementation of Bourne Shell. We can verify it through the following command: /bin/sh: symbolic link to dash. As we can see, the /bin/sh is symbolically linked to dash, which is a POSIX compliant shell used by Debian-based distributions.

2020年4月1日 · What x mean in the shebang #!/bin/sh -x? It allows you to debug the shell script: Bash provides extensive debugging features. The most common is to start up the subshell with the -x option, which will run the entire script in debug mode.

2021年7月29日 · As mentioned earlier, bash binaries are usually stored in the /bin/bash path. /bin/sh provides the SH shell, which is a simplified version of bash. You can use the man command shown below to list the details.

2021年9月30日 · 例如有些 bash 有的指令，換成 zsh 可能就有不同的寫法。 sh 其實是 dash 的縮寫，讀者有興趣的話可以看下方的說明。 我們可以透過以下指令來看，現在是用什麼來解釋 sh 這個語言. 我們可能得到結果是： 表示 sh 其實是 dash 的 soft link (捷徑)，並不等同於 bash. shell 腳本第一行#!/bin/bash你真的清楚嗎？ 1. 2. (terminal快速鍵 常用總整理)【Linux …

Basically bash is sh, with more features and better syntax. Most commands work the same, but they are different. Having said that, you should realize /bin/sh on most systems will be a symbolic...

2020年3月22日 · 本文深入解析了shell脚本中#!/bin/bash的意义，介绍了shell版本进化史，并解释了它如何指示脚本由特定的shell解释器执行。 同时，文章澄清了并非所有#都表示注释的误解。 摘要生成于 C知道 ，由 DeepSeek-R1 满血版支持， 前往体验 > 标准的shell脚本文件中，其第一行通常是：#!/bin/bash 或 #!/bin/sh ，以经典的HelloWorld为例，shell脚本如下： #!/bin/bash …