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GNU Bash Reference Manual
by Chet Ramey and Brian Fox
Paperback (6"x9"), 180 pages
ISBN 0954161777
RRP £19.95 ($29.95)

"An essential resource .... the most detailed coverage available for all aspects of Bash" --- Linux User and Developer Magazine (Issue 37, Mar 2004) Get a printed copy>>>

5 Shell Variables

This chapter describes the shell variables that Bash uses. Bash automatically assigns default values to a number of variables.

ISBN 0954161777GNU Bash Reference ManualSee the print edition