Match the following wildcards to their use
I. ? or
II. * or %
III. #
IV. [charlist]
V. [!charlist]
A. Any single character
B. Any single character in a list
C. Any single digit
D. Zero or more characters
E. Any single character not in a charlist
A, D, C, B, E
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If you run a query that shows all customers who have spent more than $500 over the past six months and limit the results to those who were born in the current month, this would be an example of ________
A) data B) information C) a complex query D) knowledge
The ls command is important for shell programmers, but it has some quirks. Offer solutions for the following:
a. ls gives you single-column output, but you want it to be shown in multiple columns. b. ls shows output sorted alphabetically. Sort it by most recently modified to least instead. c. Type two different ways to have ls include file size information. d. The opposite of a: Force ls to output a one-column file listing.