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Comment by alexpetralia | Hacker News Reader

This is probably the #1 problem with Unix-based systems in general for new users. There are so many ways to exit a command prompt depending on the application!

Off the top of my head: Ctrl+D, q, :q, exit, quit(), Ctrl+C, Ctrl+X.

Countless times have I been locked in an application and needed to cycle through those memorized commands to escape. Imagine doing that as a newbie.

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You forgot the most powerful of them all: Ctrl+Z followed by kill -9 pid

Or, `kill %1` if you backgrounded it in the current shell (or whenever number `jobs` gives).

ctrl+d is the most dangerous kind! Since that one can also exit the terminal itself.

gdb takes, depending on the situation, one time ctrl+d or two times ctrl+d to quit. It's a trap!

So since gdb usually takes two times, muscle memory learns two times, but then in that rare instance where it required it only once... logged out of ssh :(

In bash: IGNOREEOF=10

In zsh: setopt ignore_eof

In ksh: set +o ignoreeof

In tcsh/csh: set ignoreeof

Normally I just do this for login shells, so I can quickly exit out of subshells.

Similarly, to not overwrite an existing file when doing output redirection, there is bash's noclobber option.

https://www.google.co.in/search?q=bash+set+noclobber

10 ???

For bash I set `IGNOREEOF=1` so as to have to press ctrl+d twice to exit. Ten times seems a bit too many.

How to do the same for zsh?

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