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$ sudo chmod 777 ~/.oh-my-zsh/tools/uninstall.sh
$ ~/.oh-my-zsh/tools/uninstall.sh
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$ sudo chmod 777 ~/.oh-my-zsh/tools/uninstall.sh
$ ~/.oh-my-zsh/tools/uninstall.sh
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$ sudo chmod 777 ~/.oh-my-zsh/tools/uninstall.sh
$ ~/.oh-my-zsh/tools/uninstall.sh