aptsh has a color prompt, and uses readline. Readline requires that in the prompt, all non-printable characters (e.g. color changing escape sequences) are enclosed between \001 (^A) and \002 (^B).
I suspect it's a bug in aptsh that its prompt doesn't have a balanced pair of \001 and \002 bytes, hence readline prints some of the \001 characters in the terminal. ** Package changed: vte (Ubuntu) => aptsh (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to vte in Ubuntu. https://bugs.launchpad.net/bugs/1237594 Title: The U+0001 control character is output in terminal To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/aptsh/+bug/1237594/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs