Sorting a list

In order to sort a list Tcl has provided the lsort command. As with other commands this one accepts numerous options that we will cover prior to discussing the syntax. The options are as follows:

Options	Interpretations
-ascii	Sorts using string comparison with Unicode code-point collation order.
-dictionary	Sorts using dictionary style comparison.
-integer	Converts the list elements to integers and use integer comparison.
-real	Converts the list elements to floating-point values and use floating-point comparison.
-command command	Uses the command provided as a comparison command.
-increasing	Sorts in increasing order.
-decreasing	Sorts in decreasing order.
-indices	Returns a list of indices in sorted order as opposed to the values.
-index IndexList	For this option to be specified each element of the list must be a proper Tcl sublist.
-nocase	Sorts using a case-insensitive comparison.
-unique	Returns only the last set...