124: How do I produce C-XXX with my keyboard? On terminals (but not under X), some common "aliases" are: C-2 or C-SPC for C-@ C-6 for C-^ C-7 or C-S-- for C-_ C-4 for C-\ C-5 for C-] C-/ for C-? Often other aliases exist; use the "C-h c" command and try `CTRL' with all of the digits on your keyboard to see what gets generated. You can also try the "C-h w" command if you know the name of the command.