Есть такая система биллинга
http://www.mikbill.ru/
Сайт на первый взгляд приятный, но отовсюду торчат косяки, что явно уже говорит об уровне авторов. То касается и документации.
Онлайн-демо: http://www.mikbill.ru/2-mikbill/6-demo.html
Пробная версия: http://wiki.mikbill.ru/download
Установщик под Ubuntu/Debian выглядит так
drwxr-xr-x 5 root root 4096 Авг 13 2013 etc
drwxr-xr-x 4 root root 4096 Авг 13 2013 init_scripts
-rwxr-xr-x 1 root root 3160 Янв 12 2011 install_all_ubuntu.sh
-rw-r--r-- 1 root root 10240 Апр 21 2011 intal.tar
-rwxr-xr-x 1 root root 1361 Янв 12 2011 only_packets_install_debian.sh
-rwxr-xr-x 1 root root 1414 Янв 12 2011 only_packets_install_ubuntu.sh
-rwxr-xr-x 1 root root 75 Дек 23 2010 radiusd_debug.sh
# tar tvf intal.tar
-rwxr-xr-x root/root 1202 2011-04-21 14:40 instal_mikbill.sh
-rw-r--r-- root/root 588 2011-04-21 02:01 list
-rwxr-xr-x root/root 308 2011-04-20 21:55 MakeInstal.sh
-rwxr-xr-x root/root 159 2011-04-21 01:13 SetAvtoRun.sh
Из любопытства сначала запустил
# ./install_all_ubuntu.sh
./install_all_ubuntu.sh: 4: ./install_all_ubuntu.sh: sudo: not found
./install_all_ubuntu.sh: 5: ./install_all_ubuntu.sh: sudo: not found
./install_all_ubuntu.sh: 6: ./install_all_ubuntu.sh: sudo: not found
./install_all_ubuntu.sh: 10: ./install_all_ubuntu.sh: sudo: not found
./install_all_ubuntu.sh: 13: ./install_all_ubuntu.sh: sudo: not found
./install_all_ubuntu.sh: 14: ./install_all_ubuntu.sh: sudo: not found
./install_all_ubuntu.sh: 15: ./install_all_ubuntu.sh: sudo: not found
./install_all_ubuntu.sh: 16: ./install_all_ubuntu.sh: sudo: not found
./install_all_ubuntu.sh: 18: ./install_all_ubuntu.sh: sudo: not found
./install_all_ubuntu.sh: 20: ./install_all_ubuntu.sh: sudo: not found
./install_all_ubuntu.sh: 22: ./install_all_ubuntu.sh: sudo: not found
./install_all_ubuntu.sh: 24: ./install_all_ubuntu.sh: sudo: not found
libapache2-mod-php5 php5-cli php5-common php5-curl php5-gd php5-mysql
./install_all_ubuntu.sh: 27: ./install_all_ubuntu.sh: sudo: not found
./install_all_ubuntu.sh: 33: ./install_all_ubuntu.sh: sudo: not found
./install_all_ubuntu.sh: 35: ./install_all_ubuntu.sh: sudo: not found
./install_all_ubuntu.sh: 36: ./install_all_ubuntu.sh: sudo: not found
./install_all_ubuntu.sh: 37: ./install_all_ubuntu.sh: sudo: not found
./install_all_ubuntu.sh: 38: ./install_all_ubuntu.sh: sudo: not found
./install_all_ubuntu.sh: 39: ./install_all_ubuntu.sh: sudo: not found
./install_all_ubuntu.sh: 41: ./install_all_ubuntu.sh: sudo: not found
./install_all_ubuntu.sh: 43: ./install_all_ubuntu.sh: sudo: not found
./install_all_ubuntu.sh: 45: ./install_all_ubuntu.sh: sudo: not found
./install_all_ubuntu.sh: 47: ./install_all_ubuntu.sh: sudo: not found
./install_all_ubuntu.sh: 48: ./install_all_ubuntu.sh: sudo: not found
./install_all_ubuntu.sh: 49: ./install_all_ubuntu.sh: sudo: not found
./install_all_ubuntu.sh: 50: ./install_all_ubuntu.sh: sudo: not found
./install_all_ubuntu.sh: 51: ./install_all_ubuntu.sh: sudo: not found
./install_all_ubuntu.sh: 52: ./install_all_ubuntu.sh: sudo: not found
./install_all_ubuntu.sh: 53: ./install_all_ubuntu.sh: sudo: not found