IIRC, on Unix, Ctrl-\ sends the quit signal, which causes the process receiving it to do a core dump (before exiting), which can be used for post-mortem debuggi

IIRC, on Unix, Ctrl-\ sends the quit signal, which causes the process receiving it to do a core dump (before exiting), which can be used for post-mortem debugging, whereas Ctrl-C sends the kill signal, which makes the process terminate without any core dump. Those are the default actions for the signals. https://en.wikipedia.org/wiki/Control-%5C https://en.wikipedia.org/wiki/Control-%5C https://en.wikipedia.org/wiki/Core_dump https://en.wikipedia.org/wiki/Core_dump https://en.wikipedia.org/wiki/Control-C https://en.wikipedia.org/wiki/Control-C I remember doing: sdb a.out . core or something like that, in my C-on-Unix programming days earlier :) sdb was a debugger.