RosettaCodeData/Task/Take-notes-on-the-command-line/Zkl/take-notes-on-the-command-line.zkl

const notesName="NOTES.TXT";
args:=vm.arglist;
if (not args)
   { try{ File(notesName).read(*).text.print(); } catch{println("no file")} }
else{
   f:=File(notesName,"a+");
   f.writeln(Time.Date.ctime(),"\n\t",args.concat(" "));
   f.close();
}