Just a quick note: there is no need for "lsplit" or "jsplit" or any of that stuff on linux. If a file is split into parts like foo.avi.001 foo.avi.002 foo.avi.003 Putting these files together does not require additional tools. Just cat them into a new file - that's what cat (and it's opposite, split) are there for. cat foo.avi.* >> foo.avi -- poptones