ignore specific command from zsh completion

Question

Is it possible to tell zsh to not autocomplete certain commands when using TAB completion ?

EXAMPLE:

I type chm <tab> and zsh completion offers me two options:

chmem  chmod

I never use chmem. Instead of having two options, I would prefer to have chm automatically completed to chmod.

Answer 1

You can do:

zstyle ':completion:*:*:-command-:*:*' ignored-patterns 'chmem'

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If you needed to do more than one ignored pattern, you would do it like this:

zstyle ':completion:*:*:-command-:*:*' ignored-patterns 'chmem|chcpu|chcon'