Syntax: lspace-filter-pick range...

The application reads a stream from the standard input and provides a filtered stream on its standard output, containing only the chosen field ranges, in the given order. This enables the user to drop any irrelevant column, and/or to reoder the columns as needed.

The ranges are specified by indices N or N-M, where N stands for N-N, with the application accepting any range recognized by the Tcl builting command lrange.