RosettaCodeData/Task/File-input-output/Lua/file-input-output.lua

13 lines
400 B
Lua

inFile = io.open("input.txt", "r")
data = inFile:read("*all") -- may be abbreviated to "*a";
-- other options are "*line",
-- or the number of characters to read.
inFile:close()
outFile = io.open("output.txt", "w")
outfile:write(data)
outfile:close()
-- Oneliner version:
io.open("output.txt", "w"):write(io.open("input.txt", "r"):read("*a"))