Array Variables
One-dimensional arrays are supported by the Korn shell. On most systems, arrays can have a maximum of 512 elements. Array subscripts start at 0 and go up to 511. Any variable can become an array by simply referring to it with a subscript.
Array Variable Assignment Format
| variable[0]=value variable[1]=value... variable[n]=value
set –A variable value0 value1... valuen typeset variable[0]=value variable[1]=value... variable[n]=value | assign values to array variable elements |
| set +A variable value0 value1... valuen | reassign values to array variable elements |
| typeset –attributes variable[0]=value variable[1]=value... variable[n]=value | assign attributes and values to array variable elements |
| typeset –attributes variable | assign attributes to array variable |
| typeset +attributes variable | remove attributes from array variable (except readonly) |
Array Variable Evaluation
| ${array}, $array | array element zero |
| ${array[n]} | array element n |
| ${array[*]}, ${array[@]} | all elements of an array |
| ${#array[*]}, ${#array[@]} | number of array elements |
| ${#array[n]} | length of array element n |
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