In Oh My Zsh, by default, the history feature matches prefixes.
Typing ls and hitting Up Arrow will scroll through commands that start with what you typed: matching ls and ls -l but not echo ls.
In Prezto, by default, the history feature matches anywhere in the string.
Typing ls and hitting Up Arrow will scroll through commands that contain what you typed: matching ls and ls -l and also echo ls.
Is there a way to set Prezto to match prefixes only, like the Oh My Zsh default behaviour?
(According to the history-substring-search documentation, setting HISTORY_SUBSTRING_SEARCH_PREFIXED=1 will do this, but I have this set in .zshrc and it still matches anywhere in the string.)
I have now found that instead of using whatever plugin comes with Prezto, it is possible to use built-in zsh features instead.
Add the following to the end of ~/.zshrc :
autoload -U up-line-or-beginning-search
autoload -U down-line-or-beginning-search
zle -N up-line-or-beginning-search
zle -N down-line-or-beginning-search
bindkey "^[[A" up-line-or-beginning-search
bindkey "^[[B" down-line-or-beginning-search