Uttered littleguru <littleguru@xxxxxxxxxxxx>, spake thus: > What the hell is .tgz ? I can not open it at all ,we have a software > that generate this kind of ziped tar ball , but i can not open it with > tar or gzip . The ".tgz" is a compressed tar file. The other accepted suffix is ".tar.gz". Read the file like this: $ tar -zxf foo.tgz You can generate one, too, like this: $ tar -zcvf foo.tgz foo I'd use the ".tar.gz" suffix instead; then you wouldn't "just have to know" what it means. Cheers!