For example, a common issue with shell scripts is to forget to quote an environment variable that could hold a file name that contains spaces. For example, consider this really simple script: ...

As an example, here’s [calebccf] with an emulated 6502 system in a busybox ash shell script. What’s in the emulator? A simple 6502 system with RAM, ROM, and an emulated serial port on STDIO.

With this book, Linux expert Steve Parker shares a collection of shell scripting recipes that can be used as is or easily modified for a variety of environments or situations.

In a real scenario, this could be anything like downloading files, creating backup, validating user input, etc. Also, to give an example we are assuming only four steps in our script below which is ...