Goes through all the folder and apply a `git pull --rebase` from master

gitprojects.sh

for file in */ ; do
    if [[ -d "$file" && ! -L "$file" ]]; then
        echo "$file is a directory, launching git commands.";
        cd $file && git checkout master && git reset HEAD --hard && git pull --rebase --prune; 
        cd ..;
    fi; 
done