I just installed zsh today to try it out. I was trying to check my zsh version and I accidentally entered zsh -v which is the verbose option.  Now I can't seem to use reverse search on history. How do I turn it back on?
I ran `zsh -v` and now I have no shell history
shell;zsh
When you ran zsh -v, this started a new instance of zsh. You aren't seeing your previous history because you're now interacting with a different process. Type Ctrl+D or run the command exit to exit this instance and go back to the parent instance.You can use the set builtin to turn options on and off: set +v turns off the verbose option, set -v turns it on. But this has nothing to do with the history.