scanLines(f,fn)
The file is read and processed one block at a time, making this procedure potentially much better at conserving memory than scan(lines get fn,f) when the file is very large.
The object scanLines is a method function.
The source of this document is in /build/reproducible-path/macaulay2-1.25.05+ds/M2/Macaulay2/packages/Macaulay2Doc/ov_system.m2:359:0.