Jail is a chrooted environment using bash. its main use is to put it as shell for any user you want to be chrooted. Their primary goals is to be simple, clean, and highly portable.
Changes: This release adds path splitting, so you can have multiple users in a single chrooted environment (useful for isolating groups of users). It adds ChangeLog, TODO, and INSTALL files, renames the mkenv.sh for each platform, and adds a Mkenv for Red Hat 6.2.