direct errors to separate file?

SL.jl

@@ -176,6 +176,8 @@ function parse_commandline()
 end
 
 function main()
+
+
     parsed_args = parse_commandline()
 
     # SL(3,Z)
@@ -205,6 +207,20 @@ function main()
     end
     name = name*"-$(string(upper_bound))"
 
+    # (errorRead, errorWrite) = redirect_stderr()
+    # atexit(function ()
+    #     close(errorWrite)
+    #
+    #     errors = readavailable(errorRead)
+    #
+    #     close(errorRead)
+    #     if size(errors) > 0
+    #         open("$(name)/errors.log", "a") do io
+    #             write(io, errors)
+    #         end
+    #     end
+    # end)
+
     S() = SL_generatingset(N, p)
 
     if parsed_args["cpus"] ≠ nothing