dot_config/setup.sh

#!/bin/bash
# outcome: replace existing dot files with symlinks pointing to new version controlled files

#-------------------------------------------------------setup folder pointers and target files-------------------------------------------------------------

dir=~/linux_user_setup
backup=~/linux_user_setup_restore
files=".bashrc .vimrc .tmux.conf .psqlrc"

#------------------------------------------------ create the resore directory if it doesn't already exist--------------------------------------------------

if [ ! -d $backup ]
then
    mkdir $backup
fi

#-------------------------------------- loop through each target file, move it and create a symlink to the replacements------------------------------------

for file in $files 
do
    #if the file is not a symlink the just _move_ it, otherwise _copy_ the linked file
    if [ ! -L $file ];
    then
        echo "moving $file to $backup"
        mv ~/$file $backup
        echo "snapping $file to be a new symlink to version controlled file in $dir"
        ln -s $dir/$file ~/$file
    else
        # if the target file is a symlink, copy the linked file
        cp $(readlink -f $file) $backup
    fi
done

#----------------------------------------------------------see if Vundle has been cloned yet and do so-----------------------------------------------------

if [ ! -d ~/.vim ]
then
    git clone https://github.com/VundleVim/Vundle.vim.git ~/.vim/bundle/Vundle.vim
    while true; do
        read -p "Do you want to install the vim plugins now?" yn
        case $yn in
            [Yy]* ) vim +PluginInstall +qall; break;;
            [Nn]* ) exit;;
            * ) echo "Please answer yes or no.";;
        esac
    done
fi
echo "you may need to run vim and execute :PluginInstall to sync packages with the new .vimrc, or \"vim +PluginInstall +qall\" from the command line"