#!/bin/bash

BASEDIR="$(dirname -- "$(readlink -f -- "$0")")" # Replace "$0" with "$(pwd)" if you prefer

DoUpdate () {
  NAME="$1"
  DIR="$2"
  cd $DIR
  if git pull > /dev/null 2>&1; then
    echo $NAME" SUCCESS!"
  else
    echo $NAME" FAILED!"
  fi    
}

i=0
for d in $(ls); do
  DIR=$BASEDIR"/"$d
  if [ -d $DIR ]; then
    DoUpdate $d $DIR &
    PIDS[i]="$!"
    i=$((i+1))
  fi
done

for pid in "${PIDS[@]}"; do
  wait $pid
done