Add ohmyzsh

ohmyzsh/README.md

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+# ohmyzsh
+My ohmyzsh config.
+
+## Prerequisites
+1. Install zsh. It should come by default with MacOS, else get it thru homebrew.
+```
+sudo apt get install zsh
+```
+2. Set zsh as default shell
+```
+chsh -s /bin/zsh
+```
+
+## Installation
+1. Install omz
+```
+sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"
+```
+2. Remove the generated zshrc and link the one in this repo as a replacement. Note the file in this repo isn't hidden.
+```
+rm ~/.zshrc
+ln -sfn /path/to/dotfiles/ohmyzsh/zshrc ~/.zshrc
+```
+3. Source ~/.zshrc or restart the terminal.
+```
+source ~/.zshrc
+```
+
+

ohmyzsh/zshrc

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+export ZSH="$HOME/.oh-my-zsh"
+ZSH_THEME="robbyrussell"
+
+zstyle ':omz:update' frequency 7
+
+plugins=(git)
+
+source $ZSH/oh-my-zsh.sh
+