How does /bin/sh differ from bash?

/bin/sh and bash (Bourne Again SHell) are both command-line interpreters, but they have several differences:

1. Features:

   • /bin/sh: Typically has a minimal feature set, focusing on basic shell functionalities. It is designed to be compliant with the POSIX standard.
   • bash: Offers many advanced features, including command-line editing, job control, arrays, and more extensive scripting capabilities.

2. Scripting:

   • /bin/sh: Scripts written for /bin/sh are generally more portable across different Unix-like systems due to its adherence to POSIX standards.
   • bash: While it can run scripts written for /bin/sh, it also supports additional syntax and features that may not be available in /bin/sh.

3. Interactive Use:

   • /bin/sh: Less user-friendly for interactive use, lacking features like command history and tab completion.
   • bash: Provides a more user-friendly experience with features like command history, tab completion, and customizable prompts.

4. Compatibility:

   • /bin/sh: Often used for system scripts and startup scripts to ensure compatibility across different environments.
   • bash: Commonly used as the default interactive shell for users due to its enhanced features.

In summary, while /bin/sh is a simpler, more portable shell, bash provides a richer set of features for both scripting and interactive use.