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V. Basil Hans,
- Research Professor, Department of Management & Commerce, Srinivas University, Mangaluru, Karnataka, India
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The Bourne Again Shell (Bash) is a popular command-line interpreter and scripting language, created as a free software alternative to the original Bourne Shell (sh). Developed as part of the GNU Project, Bash extends the functionality of its predecessor by incorporating features from the C Shell (csh) and KornShell (ksh), making it more versatile and powerful. Bash offers robust command-line editing, job control, and support for functions and variables, enabling users to automate tasks, manage processes, and handle input/output redirection with ease. Its portability across Unix-like operating systems, including Linux and macOS, and its status as the default shell for many distributions, have cemented its position as a cornerstone of modern computing. Key features include advanced scripting capabilities, such as command chaining, loops, conditionals, and support for regular expressions, making Bash ideal for both interactive and non-interactive use. Programming with the Bourne shell resembles programming in traditional languages. If you’ve written code in languages like C, Pascal, BASIC, or FORTRAN, you’ll notice many familiar features. For instance, the shell has variables, conditional and looping constructs, functions, and more. Shell programming is also different from conventional programming languages. The shell itself offers limited functionality, so most tasks rely on calling external programs. Consequently, the shell includes robust features for combining programs in sequence to accomplish tasks. It is an essential tool for system administrators, developers, and advanced users, offering a versatile platform to manage system resources and automate routine tasks. Bash’s open-source nature ensures continued development and integration of new features, securing its relevance in evolving computing environments.
Keywords: Bash, UNIX, GNU operating system, file system shell-scripting
[This article belongs to Journal of Advances in Shell Programming (joasp)]
V. Basil Hans. Exploring the Bourne Again Shell (Bash). Journal of Advances in Shell Programming. 2024; 12(01):-.
V. Basil Hans. Exploring the Bourne Again Shell (Bash). Journal of Advances in Shell Programming. 2024; 12(01):-. Available from: https://journals.stmjournals.com/joasp/article=2024/view=0
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Journal of Advances in Shell Programming
| Volume | 12 |
| Issue | 01 |
| Received | 06/11/2024 |
| Accepted | 09/11/2024 |
| Published | 31/12/2024 |