UNIX Command
$ls AUTHORS autom4te.cache ChangeLog CVS cvs.sh doc po README src TODO $ls -m AUTHORS, autom4te.cache, ChangeLog, CVS, cvs.sh, doc, po, README, src, TODO $
UNIX Explanation
-m fill width with a comma separated list of entries
Theory Drop
In computer science, an array data structure or simply array is a data structure consisting of a collection of elements (values or variables), each identified by at least one index. An array is stored so that the position of each element can be computed from its index tuple by a mathematical formula. source : http://en.wikipedia.org/wiki/Array_data_structure