I've always included a bit to redirect the scripts output to a file, then restore stdout and stderr afterwards. Otherwise you won't be able to login from the console :)

Save stdout and stderr

exec 6>&1

exec 5>&2

Redirect stdout and stderr to a file

exec > /root/StackScript.out

exec 2>&1

[….do_stuff….]

Restore stdout and stderr

exec 1>&6 6>&-

exec 2>&5 5>&-