prezto_config/tools/install.sh

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if [ -d ~/.oh-my-zsh ]
then
echo "You already have Oh My Zsh installed. You'll need to remove ~/.oh-my-zsh if you want to install"
exit
else
echo "Cloning Oh My Zsh..."
/usr/bin/env git clone git://github.com/robbyrussell/oh-my-zsh.git ~/.oh-my-zsh
fi
echo "Looking for an existing zsh config..."
if [ -f ~/.zshrc ] || [ -h ~/.zshrc ]
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then
echo "Found ~/.zshrc. Backing up to ~/.zshrc.pre-oh-my-zsh";
cp ~/.zshrc ~/.zshrc.pre-oh-my-zsh;
rm ~/.zshrc;
fi
echo "Using the Oh My Zsh template file and adding it to ~/.zshrc"
cp ~/.oh-my-zsh/templates/zshrc.zsh-template ~/.zshrc
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echo "Copying your current PATH and adding it to the end of ~/.zshrc for you."
echo "export PATH=$PATH" >> ~/.zshrc
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echo "Time to change your default shell to zsh!"
chsh -s /bin/zsh
echo "Hooray! Oh My Zsh has been installed."
/bin/zsh
source ~/.zshrc