update_git_repos.sh

#!/bin/bash

# Store the current directory
current_directory=$(pwd)

# Setup colours
c_reset='\033[00m'
c_highlight='\033[33m'

echo -e "\n${c_highlight}Pulling in latest changes for all repositories...${c_reset}"

# Find all git repositories
for i in $(find . -maxdepth 3 -name ".git" | cut -c 3-); do
    # Change the repository directory.
    cd "$i/..";

    echo -e "\n${c_highlight}${PWD##*/}${c_reset}";

    # Update repository.
    if (`git branch -r| grep -q origin`); then
       git pull origin master;
    fi
    if (`git branch -r| grep -q upstream`); then
       git fetch upstream;
       git merge upstream/master
    fi

    # Back to current directory.
    cd $current_directory
done

echo -e "\n${c_highlight}Complete!${c_reset}\n"