https://github.com/a2o/snoopy
Snoopy development has been migrated to github. Please follow the link "Snoopy Logger Web Site" below.
Snoopy is designed to aid a sysadmin by providing a log of commands executed. Snoopy is completely transparent to the user and applications. It is linked into programs to provide a wrapper around calls to execve(). Logging is done via syslog.