From mboxrd@z Thu Jan 1 00:00:00 1970 From: ron@ronnatalie.com (Ronald Natalie) Date: Tue, 28 Feb 2017 06:55:19 -0500 Subject: [TUHS] Emacs and undump In-Reply-To: References: <145bd49e-7390-034b-f8c3-002e6e6f15fe@update.uu.se> <86mvd8orhm.fsf@molnjunk.nocrew.org> <95085781-7de7-1658-6150-ce9145d5ee49@update.uu.se> Message-ID: <0C7E9021-5412-4038-AA83-5677640AC8DE@ronnatalie.com> > On Feb 27, 2017, at 9:04 AM, Arthur Krewat wrote: > > In TOPS-10, you could detach from your current job, login again, and keep going. Then, attach to the previous job, and go back and forth endlessly. > ITS had this feature as well. I actually implemented this for UNIX in a crude way. I put a program as my login shell that spawned off a shell on a PTY and the program did sort of a lightweight “telnet” between the PTY and my login terminal. I could then make the intermediary program go away (effectively logging out of the system) while leaving the shell running on the PTY. The subsequent login, the program would notice I still had my previous session running and offer to reconnect it for me.