October 2024
Beginner to intermediate
698 pages
16h 7m
English
Content preview from The Ultimate Linux Shell Scripting Guide
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19
Shell Script Portability
As we’ll see in a bit, many different shells are available for Linux, Unix, and Unix-like operating systems. Thus far though, we’ve mainly just been working with bash. The big advantage of bash is that it comes already installed on most Linux distros, macOS, and OpenIndiana. It normally isn’t installed by default on the BSD-type distros, but you can install it yourself, if you need to.
The big advantage of bash is that it can use different scripting constructs that can make life easier for scripters. The big disadvantage of bash is that many of these bash constructs aren’t always available in non-bash shells. That’s not a big problem if you can install bash on all of your machines, but that’s not always possible. ...
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