Chapter 36. Exotica
In this, the final chapter of our journey, we will look at some odds
and ends. While we have certainly covered a lot of ground in the
previous chapters, there are many bash features that we have not covered. Most are
fairly obscure and useful mainly to those integrating bash into a Linux distribution.
However, there are a few that, while not in common use, are helpful
for certain programming problems. We will cover them here.
Group Commands and Subshells
bash allows commands to be
grouped together. This can be done in one of two ways:
either with a group command or with a
subshell. Here are examples of
the syntax of each.
Group command:
{ command1; command2; [command3; ...] }Subshell:
(command1;command2; [command3;...])
The two ...
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