How to load different zshrc file via commandline option?

Question

I used to do this with bash...

/bin/bash --rcfile /home/sindhu/bin/misc_scripts/shellrc/.bashrc_1

how can I accomplish the same with zsh?

Thank you.

Answer 1

You can approximate that feature by using the ZDOTDIR variable.

In a directory perhaps like this:

mkdir /home/sindhu/bin/misc_scripts/shellrc/.zshrc_1

create a file called .zshrc containing your alternative startup script. Then you can start zsh like this:

ZDOTDIR=/home/sindhu/bin/misc_scripts/shellrc/.zshrc_1 zsh