tcl.fl Verb: Access/TCL

tcl.fl

Command tcl.fl Verb: Access/TCL
Applicable release versions: AP
Category TCL (746)
Description forms a single list from two lists using intersection, union, or exclusion operators.

If file.reference2 is not specified, file.reference2 is assumed to be the same as file.reference1. If list2 is not specified, it is assumed to be the same as list1. If neither file2 nor list2 are specified, the effect is the same as a get-list. The created list overlays list1 in file1.

The "?" displays help text on the screen.

operators:

= Indicates an intersection. Forms list of matching items.
+ Indicates a union. Forms list of nonduplicate items.
- Indicates an exclusion. Forms list of items not in list2.
Syntax fl file.reference1 list1 {operators} {file.reference2} {list2}
fl ?
Options
Example
fl pointer-file football.fans + baseball.fans

This creates a list of all sports fans from both lists.

fl pointer-file football.fans = baseball.fans

This creates a list of those who enjoy both sports.

fl pointer-file football.fans - baseball.fans

This creates a list of those who like football only.
Purpose
Related active.list
tcl.compare-list
tcl.edit-list
basic.readnext
tcl.get-list
tcl.sort-list
access.nselect
tcl.copy-list
tcl.save-list
secondary.list
tcl.el
tcl.delete-list