If I scroll way up or use Ctrlr search and go way up in the history, how to get back down to the clear line? I know I can clear with Ctrle, Crtlu, but that modifies them. Is there an official way beside Ctrlc to reset the shell?
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1 Answer
Two "official" options (from 8.4 Bindable Readline Commands in the Bash manual):
abort (C-g)Abort the current editing command and ring the terminal’s bell (subject to the setting of bell-style).end-of-history (M->)Move to the end of the input history, i.e., the line currently being entered.
M-> can be entered by pressing Alt>, or Esc followed by >.
Notes:
abortis to be used while in the history search mode.end-of-history, on the other hand, should be used after selecting a command from the history search mode (by, e.g, pressing Esc or an arrow key).
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Thanks a bunch. Works a treat! Well the move to end-of-history does. The C-g doesnt but that could be because of an overriding key shortcut in Kubuntu. Konsole has a few of those (C-k). Another handy key combo is C-d to 'exit', often just exits a process and leaves you in the shell, and C-\ will kill many rogue processes and 'dump' (to somewhere). Thanks for the reference doc.– alchemyNov 20, 2021 at 3:58
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@alchemy Ctrl-D typically sends an EOF indicator, and Ctrl-\ sends sigquit (those are typically managed by the line discipline. You can see these settings using
stty -a(e.g., askubuntu.com/a/385905/158442)– muruNov 20, 2021 at 5:18 -
Ah, you're right about C-d being EOF, which is basically what happens when you press enter in "icanon" mode (if I understand unix.stackexchange.com/a/110248/346155). Modern terminals have their own more complex "line editors" and so C-d is a great key to replace. I use it for "intr" interupt so that I can have C-c as copy and C-x as paste. Interesting though that "icanon" mode looks like C-u used to clear the entire line instead of using C-e,C-u combo.– alchemyNov 21, 2021 at 1:36