Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The term grist in software interpreters (such as a Unix shell) refers to the addition of characters before and/or after a parameter to ensure uniqueness to the interpreter. For example, in a UNIX shell if there is a file named "-f" in the current directory, the following command: > rm -f Will not work because "-f" is interpreted as an option to the "rm" command. Rather, one needs to "add grist" to get the appropriate behavior: > rm ./-f In this case, "./" is grist because it prevents "-f" from being interpreted as an option.

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