From: "Peña, Botp" <botp@...>
Date: 2007-09-08T19:51:04+09:00
Subject: Re: read a specific line from a file

From: William James [mailto:w_a_x_man@yahoo.com] 
# > rio has simple solutions for line grabbing, like eg, "get 
# line 3..5, lines 100,200,300..400, and lines containing /test/"
# >
# > rio('test.txt').line[3..5,100,200,300..400,/test/]
# 
# lines = IO.readlines("phrases_no_extra.txt")
# lines.values_at( 3..5,100,200,300..400 ) +
#   lines.grep( /test/ )

yap. very clean too, but, 
1. reads whole file in mem
2. rescans array 2x

kind regards -botp