refers to a particular program, and to the language you
use to tell this program what to do. When we need to be careful, we
the program "the
utility" and the language "the
language." The term
refers to a version of
as part the GNU project. The purpose of this manual is to explain
language and how to run the
program refers to a program
written by you in
See section Getting
for the bare
essentials you need to know to start using
Some useful "one-liners" are included to give you a feel for the
language (see section Useful
program has been provided for you
(see section Sample
If you find terms that you aren't familiar with, try looking them
up in the glossary (see section Glossary).
language is summarized for quick reference in
Summary. Look there if you just
to refresh your memory about a particular feature.
Most of the time complete
programs are used as examples, but in
some of the more advanced sections, only the part of the
that illustrates the concept being described is shown.
Data Files: Sample data files
for use in the
programs illustrated in this manual.