When starting my shell with e.g. exec zsh from the command line, how can I have it not parse any /etc/ files?

I read in the zsh guide that when a user starts a zsh shell, it processes the following init files in order:

# Every shell. Always

# Every shell. Avoidable if passing flag -f to zsh

# If it's a login shell.

# If it is an interactive shell

# If it is a login shell

When starting zsh, I would like to skip processing all the /etc/* files (except /etc/zshenv which I assume I can't skip as a non-root user?), and only parse my own init files in my home directory.

How can I do this when I invoke exec zsh from the command line?

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Unset the GLOBAL_RCS option. To do this, add unsetopt GLOBAL_RCS to /etc/zshenv or $ZDOTDIR/.zshenv or run zsh -o NO_GLOBAL_RCS. Note that if $ZDOTDIR is unset, $HOME is used instead.

When GLOBAL_RCS is unset, /etc/zprofile, /etc/zshrc, /etc/zlogin and /etc/zlogout will not be sourced.

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  • Thanks. I do not have admin rights to edit /etc/zshenv. I guess I can add this to ~/zshenv instead? – Amelio Vazquez-Reina Apr 15 '13 at 23:24
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    That will work. You personal zshenv file is sourced right after /etc/zshenv, before the other config files are sourced. I have edited my answer to include that. – user26112 Apr 15 '13 at 23:28

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