local shell = require("shellex.shell")
local fs = require("shellex.filesystem")

local args = shell.parse(...)
local ec = 0
if #args == 0 then
	while true do
		local input = read()
		print(input)
	end
end

for i = 1, #args do
	local arg = shell.resolve(args[i])
	if fs.isDirectory(arg) then
		io.stderr:write(string.format('cat %s: Is a directory\n', arg))
		ec = 1
	else
		local file, reason = fs.open(arg)
		if not file then
			io.stderr:write(string.format("cat: %s: %s\n", args[i], tostring(reason)))
			ec = 1
		else
			local chunk = file.readAll()
			file:close()
			if chunk then
				io.write(chunk)
				io.write('\n')
			end
		end
	end
end

return ec