Update all your git repositories within your development directory in one go.

update-all.sh

#!/bin/bash

# Updates all my repositories in my ~/Dev folder.
# Requires `git-up`: `# gem install git-up`

REPO_DIR=$HOME/Dev # Replace with your development directory

cd $REPO_DIR
DIRS=`ls -d */`

dir_arr=$(echo $DIRS | tr "/" " ")

for dir in $dir_arr
do
    echo "Changing directory into $dir..."
    cd $dir
    if [[ -d .git ]]
    then
        git-up && echo "Repository $dir successfully updated."
    else
        echo "Nothing to see here in $dir, moving on..."
    fi
    echo
    cd ..
done