8.2. Scripting the Bash Shell
The makings of a typical script includes a hash-bang line "!/bin/bash", variable declarations "declare FOO=BAR", and optionally command variable declarations, This is all we need to create a static script. We will cover these terms more in-depth in the following section, as well as explore the logical constructs that make a script such a powerful wrapper for the command-line tools Mac OS X provides.
The bash shell is based on the Bourne shell (sh), and is syntactically backward- compatible. In fact, the b and a in BASH stand for Bourne Again, a tribute to sh and its author Stephen Bourne. The bash shell is very capable, and has support for numerous control statements. This includes support for standard control statements: ...
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