blasti

ringbuf={}
ringbuf.eof=0
ringbuf.size=0
ringbuf.__index=ringbuf

function ringbuf:new(size)
  size=tonumber(size)
  if not size then
    return nil, "arg must be an number"
  elseif size<1 then

blasti

#!/usr/bin/env lua
-- Example usage: ./tail.lua logfile -10
local fd=io.open(arg[1],"r")
local lines_to_read=math.abs(tonumber(arg[2]) or 0)
local eof=fd:seek("end",-1)
local pos=eof
local lines_read=0
local buf={}
local buf_len=0
while pos do