hello, I want to know when i give command like cp file1 file2 or cat file2 how they does that with respect to kernel source code which function in kernel they call to accomplish their tasks? regards, cranium __________________________________ Celebrate Yahoo!'s 10th Birthday! Yahoo! Netrospective: 100 Moments of the Web http://birthday.yahoo.com/netrospective/ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/