Pro Bash: Learn to Script and Program the GNU/Linux Shell

© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2023

J. VarmaPro Bash https://doi.org/10.1007/978-1-4842-9588-5_15

15. Entry-Level Programming

Jayant Varma¹  

(1)

Berwick, VIC, Australia

 

The preference for bash over any other POSIX shell stems to a great extent from its extensions that enhance interactive programming. The extended options to the read built-in command (which were described in Chapter 9), combined with the history and readline libraries, add functionality that no other shell can match.

Despite its richness, there is still no easy way for the shell to deal with keys such as function keys that generate multiple characters. For that, this chapter presents the key-funcs library of functions. The second ...