inital setup

setup.sh

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+#!/bin/bash
+############################
+# .make.sh
+# This script creates symlinks from the home directory to any desired dotfiles in ~/dotfiles
+############################
+
+########## Variables
+
+dir=~/dotfiles                    # dotfiles directory
+olddir=~/dotfiles_old             # old dotfiles backup directory
+files="bashrc vimrc vim zshrc oh-my-zsh private scrotwm.conf Xresources"    # list of files/folders to symlink in homedir
+
+##########
+
+# create dotfiles_old in homedir
+echo -n "Creating $olddir for backup of any existing dotfiles in ~ ..."
+mkdir -p $olddir
+echo "done"
+
+# change to the dotfiles directory
+echo -n "Changing to the $dir directory ..."
+cd $dir
+echo "done"
+
+# move any existing dotfiles in homedir to dotfiles_old directory, then create symlinks from the homedir to any files in the ~/dotfiles directory specified in $files
+for file in $files; do
+    echo "Moving any existing dotfiles from ~ to $olddir"
+    mv ~/.$file ~/dotfiles_old/
+    echo "Creating symlink to $file in home directory."
+    ln -s $dir/$file ~/.$file
+done
+
+install_zsh () {
+# Test to see if zshell is installed.  If it is:
+if [ -f /bin/zsh -o -f /usr/bin/zsh ]; then
+    # Clone my oh-my-zsh repository from GitHub only if it isn't already present
+    if [[ ! -d $dir/oh-my-zsh/ ]]; then
+        git clone http://github.com/robbyrussell/oh-my-zsh.git
+    fi
+    # Set the default shell to zsh if it isn't currently set to zsh
+    if [[ ! $(echo $SHELL) == $(which zsh) ]]; then
+        chsh -s $(which zsh)
+    fi
+else
+    # If zsh isn't installed, get the platform of the current machine
+    platform=$(uname);
+    # If the platform is Linux, try an apt-get to install zsh and then recurse
+    if [[ $platform == 'Linux' ]]; then
+        if [[ -f /etc/redhat-release ]]; then
+            sudo yum install zsh
+            install_zsh
+        fi
+        if [[ -f /etc/debian_version ]]; then
+            sudo apt-get install zsh
+            install_zsh
+        fi
+    # If the platform is OS X, tell the user to install zsh :)
+    elif [[ $platform == 'Darwin' ]]; then
+        echo "Please install zsh, then re-run this script!"
+        exit
+    fi
+fi
+}
+
+install_zsh