Subsets

You can extract specific elements from a list by putting one or more element numbers after the variable name in brackets. Using the example in ``Variable substitutions'':

   $editors(2)

   xedit

More than one subscript can be given. For example, the following:

   days=(mon tue wed thur fri sat sun)
   echo $days(3 1 3)

   wed mon wed

Subscripts that are out of range are ignored, so the same result is obtained with:

   echo $days(3 0 1 8 3)

The element numbers may come from another variable or any other construct, so:

   $days($#days)

   sun