> The instruction I mean is some terminal commands, like fdisk, du, df , > date, etc, not kernel apis. I guess you are speaking of. are the commands that you can execute from the shell prompt. Most of such commands, that are accepted by Linux are UNIX ones, or their derivatives (with few extra ones, AFAIK). To learn, categorically, about the basic commands like fdisk, du etc. one book I'd suggest is: "Your UNIX: The Ultimate Guide (Paperback)" by Sumitabha Das. Here is the link to it on Amazon: http://www.amazon.com/gp/reader/0072520426/ref=sib_dp_pop_toc?ie=UTF8&p=S00R#reader-link -- With regards, Jagadeesh Bhaskar P -------------------- Bugs are by far the largest and most successful class of entity, with nearly a million known species. In this respect they outnumber all the other known creatures about four to one. —Professor Snopes' Encyclopedia of Animal Life -------------------- -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ