3th grade 1st semester

P1

1. "gcc" and "Make" program
2. compile together after generate object codes: one header file and three C file

P2

1. Cat program function open, write, ...

P3

1. cat program no using buffer
2. ls program
3. Using system call 'mkdir', implemeting program making directory(use umask function)

P4

1. make directory

P5

1. fork
2. git manual

P6

1. Signal

others are received sample codes in class time