Line Finder by JoshhT

--[[
This code is written soley, and completely by JoshhT.
Skype : JoshhT44
Please do not steal, distribute, or plagiarise my work.
If this code has helped you, feel free to thank me :)
Whether it be a +1 on the post, or adding me on skype to say thanks.
]]--


local args = {...}

function cleanup()
  local a = args[1]
  local b = ""
  if string.sub(a, 1, 1) == "\"" then
    b = string.sub(a, 2, -1)
  else
    b = a
  end
  a = string.reverse(b)
  if string.sub(a, 1, 1) == "\"" then
    b = string.sub(a, 2, -1)
    b = string.reverse(b)
  end
  return b
end

local fileLoc = cleanup()
local lineNum = tonumber(args[2])

function program()
  local file = fs.open(fileLoc, "r")
  local list = {}
  local line = file.readLine()

  repeat
  table.insert(list, line)
  line = file.readLine()
  until line == nil

  file.close()
  print("Line " .. lineNum .. ": " .. list[lineNum])
end

if #args == 2 then
  if fs.exists(fileLoc) then
    program()
  else
    print("Invalid file location.")
  end
elseif args[1] == "help" then
  print [[This program was written to help people
Find an exact line in their program.
Simply type in the program location,
With or without the quotation marks, it works either way :)
Then type the line you wish to retrieve. Example:
lineFinder "/disk/mining/branch" 34
Would print line 34 within the file specified.
Any errors should be directed here,
http://www.computercraft.info/forums2/index.php?/topic/5032-line-finder-by-joshht/

Thanks for using my program :)
JoshhT.]]
else
  print("Please enter the file destination\nAnd line number only.")
end