linecut outputs selected lines from streams. The motivation to develop 
such a tool was to provide missing functionality not found within head, 
tail & sed. It features line-numbering (as seen in coreutils' cat), 
multiple files and a diversity of range of range specifications. 
Ranges may consist of absolute, relative-to-EOF, or relative from 
previous (advancement) line positions. Multiple ranges can be chained, 
but that requires that they don't overlap. Furthermore, the line-numbering 
is not unique to each file and filename headers will be output if requested.
