Running exec in an interactive shell does not restore the terminal signals TSTP, TTIN, TTOU, causing them to be ignored in the new command.
$ trap $ exec bash $ trap trap -- '' SIGTSTP trap -- '' SIGTTIN trap -- '' SIGTTOU Andreas. -- Andreas Schwab, SUSE Labs, sch...@suse.de GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7 "And now for something completely different."
