Various programs used in the I/O lecture names.txt: Sample text file showfile*.c: Different ways to write contents of file to standard output showfile1_nobuf.c: One character at a time showfile2_buf.c: Using buffer showfile3_stdio.c: Using standard I/O functions showfile4_rio.c: Using RIO package showfile5_mmap.c: Using mmap csapp.{c,h} CS:APP wrappers ffiles1.c ffiles2.c ffiles3.c File puzzles hello.c Demonstrates buffering in libc function statcheck.c stat example