Description: Retrieve an element from a list
Syntax: lindex list index
Argument: list, position in list
Returns: element from a list of values, with spaces between elements
See Also: list, llength, lappend, foreach, append, concat
This command treats list as a Tcl list and returns the index’th element from it (0 refers to the first element of the list). In extracting the element, lindex observes the same rules concerning braces and quotes and backslashes as the Tcl command interpreter; however, variable substitution and command substitution do not occur. If index is negative or greater than or equal to the number of elements in value, then an empty string is returned. If index has the value end, it refers to the last element in the list.