multi.sh

#!/usr/bin/env sh
pwd="`pwd`"
dirs=*
code=0

while [[ "$1" =~ ^- && ! "$1" == "--" ]]; do case $1 in
  -q | --quiet )
    quiet=1
    ;;
  -i | --ignore-errors )
    ignoreerrors=1
    ;;
  -h | --help )
    echo "Usage: multi [-qi] <command>"
    echo "runs a command in all child directories."
    echo ""
    echo "Options:"
    echo "  -q, --quiet          supress echoing of commands"
    echo "  -i, --ignore-errors  don't care about errors"
    echo ""
    echo "Example:"
    echo "  multi git push"
    echo "  multi -i git commit -m update"
    exit
esac; shift; done
if [[ "$1" == "--" ]]; then shift; fi

if [ "$ignoreerrors" != "1" ]; then
  set -o errexit
fi

for dir in $dirs; do
  if [ -d $dir ]; then
    if [ "$quiet" != "1" ]; then echo "\n\033[34m$dir\033[32m → $@\033[0m"; fi
    cd $dir && $@ 2>&1
    result=$?
    if [ "$ignoreerrors" = "1" ]; then result=0; fi
    if [ "$result" != "0" ]; then code=$result; fi
    cd $pwd
  fi
done

exit $code