From LQWiki
AVFS stands for A Virtual File System. As the name suggests, it is a VFS. Unlike other common VFS's, this one doesn't require kernel patchs, or any support from a program. It uses the LD_PRELOAD feature of ld.so to ensure every program uses this VFS.
AVFS supports the formats tar, rar, gzip, bzip2, zip and a few others.
This page is available under a