local shell=require("shell")

local args,options=shell.parse(...)

if options.V or options.version then
io.write("yes v:1.0-3\n")
io.write("Inspired by functionality of yes from GNU coreutils\n")
return 0
end

if options.h or options.help then
io.write("Usage: yes [string]...\n")
io.write("OR:    yes [-V/h]\n")
io.write("\n")
io.write("yes prints the command line arguments, or 'y', until is killed.\n")
io.write("\n")
io.write("Options:\n")
io.write("	-V, --version	Version\n")
io.write("	-h, --help  	This help\n")
return 0
end

local msg=#args==0 and'y'or table.concat(args,' ')
msg=msg..'\n'

while io.write(msg)do
if io.stdout.tty then
os.sleep(0)
end
end
return 0