ruby script to adjust lines a through b (i made it for when i copy and paste large chunks of code but don't want to fix my indentations. keep a uniform pattern throughout, and voila)

indenter.rb

#programmed by michael ward
#h3xc0ntr0l@gmail.com

def adjustline(line, off)
  str = ""
  1.upto(off) {|x| str << " "}
  str << line
  str
end

def getfile_withlines(fd,a,b,off)
  num = 0
  nl = []
  fd.each_line do |line|
    num += 1
    if num >= a && num <= b
      line = adjustline(line, off)
      nl.push(line)
    else
      nl.push(line)
    end
  end
  nl
end

def write(content, path)
  fdd = File.open(path, "w")
  content.each{|str| fdd.write(str)}
end

def usage
  puts "movefile.rb file startline endline offset"
  exit
end

usage unless ARGV.length == 4
path, startline, endline, offset = ARGV[0..3]
fd = File.open(path, "r")
nw = getfile_withlines(fd, startline.to_i, endline.to_i, offset.to_i)
write(nw, path)