Install oh-my-zsh with fish-like plugins.

install-omzfish.sh

#!/bin/sh
set -ex

## install oh-my-zsh ##
sh -c "$(curl -fsSL https://raw.githubusercontent.com/robbyrussell/oh-my-zsh/master/tools/install.sh)"

## install fish-like plugins ##
git clone https://github.com/zsh-users/zsh-syntax-highlighting.git ${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/plugins/zsh-syntax-highlighting

git clone https://github.com/zsh-users/zsh-autosuggestions ${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/plugins/zsh-autosuggestions

sed -i '/plugins=($/a zsh-autosuggestions history-substring-search zsh-syntax-highlighting' ~/.zshrc