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Aliases
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10.9 Shell Functions

sh_init
The C shell has aliases (10.2). But until System V Release 2, the Bourne Shell had almost (10.10) no way for users to set up their own built-in commands. Functions are like aliases, but better. For instance, functions can return a status (44.7) and have much more reasonable syntax (10.7). bash and the Korn Shell have shell functions, too. To find out all about functions, check a shell programming book. There are examples in the sh_init file on the CD-ROM. Here are the examples from articles 10.2 and 10.3 changed into Bourne shell aliases:

That example shows how to write a function with more than one line. In that style, with the ending curly brace on its own line, you don't need a semicolon after the last command.

- JP


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