Arrays

Arrays

• Indexes start at 0
• Indexes can be any arithmetic expression that evaluates to 0 or a positive number
• Indexes need not be contiguous
• Unassigned elements do not exist
• Elements can contain strings or numbers

Creating an empty array (Optional)

declare -a myarray

Assigning values

myarray[2]=alice
myarray[0]=hatter
myarray[1]=dutchess

myarray=([2]=alice [0]=hatter [1]=duchess)

myarray=(hatter duchess alice)

myarray=(hatter [5]duchess alice)
(This assigns hatter to element 0, duchess to element 5 and alice to element 6)

Reassigning to an existing array with a compound array statement replaces the old array with a new one

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	First created Apr 22, 2008 ~ Last revised December 21, 2009