Defrag command for Mac OS/Linux

defrag.sh

#! /bin/bash

# based on http://goingmyway.net/?p=632
#
# check depend commands
#
_dependCommands="git expect"
for _COMMAND in ${_dependCommands}; do
 if [ ! `whereis ${_COMMAND} |grep ${_COMMAND}` ]; then
  echo "ERROR!! 必要なコマンドが見つかりません : ${_COMMAND}"
  exit 1
 fi
done

#
# Get git dirs
#
_GITDIRS=`find . -name ".git" | sed "s/\(\.\/.*\)\/.git/\1/g"`

#
# Clean git dirs
#
for _DIRS in ${_GITDIRS}; do
  echo -e "\n  -- ${_DIRS} -- ";
  cd $_DIRS;
  git gc;
  cd ../
done