bash function (such as you might put in .bash_aliases) to perform git commands on nested repos

alias_gitsubs.sh

#!/bin/bash

gitsubs() {
  gitsubs_max_depth=12

  echo searching for git repos
  echo directory max-depth = $gitsubs_max_depth
  echo executing git $@
( # use a subshell and change the field-separator
  # to allow for spaces in filenames
  IFS=$'\n'
  for d in `find . -maxdepth $gitsubs_max_depth -type d`
  do
    pushd $d >/dev/null;
#   if directory contains a .git dir OR if is a bare-repo:
    if [[ -d .git || $d == *.git && $(basename $d) != .git ]]; then
      echo ".,.,.,.,.   \\><((((*> [  $d  ] <*))))></    "; echo
      git $@;
      echo ""
    fi
    popd &>/dev/null
  done
)
}