local fs = require("filesystem")
local term = require("term")
local textsss = "0"
local fileLenth = 0
if fs.exists("/data/usr/programs/wheee.txt") then
term.write("file exists \n")
else
term.write("file does not exist you butt  \n")
end
--Example
file = fs.open("/data/usr/programs/wheee.txt",'a')--Arg 1 - file name / path Arg 2 option (r/w/a)
file:write("Blah")
tonumber(fileLength) = tonumber(fileLengh) + tonumber(4)
file:close()
file = fs.open("/data/usr/programs/wheee.txt", 'r')
textsss = file:read(fileLength)
file:close()
term.write(tostring(textsss))