Hi, I know this might sound stupid but I am just wondering what are some of the key differences between Unix and Linux. I know Linux is basically a clone of Unix.. (they probably have the same file system too?) I am thinking of learning linux.. so i just wanna know if i learn linux, would i be able to work off unix easily? (btw, do they have the same command lines? similar at least?) well, your pointers would be greatly appreciated... thanks...