Aug 04 16:00:14
      85 m.c -rw-r--r-- wietse /home/wietse/hello.c (create source file)
  Aug 04 16:00:21
    1024 m.. drwxr-xr-x wietse /home/wietse
    4173 mac -rwxr-xr-x wietse /home/wietse/hello   (create executable)
      85 .a. -rw-r--r-- wietse /home/wietse/hello.c (read source file)

Figure 2: File access time patterns for compiling a "hello world" C program. The line in bold shows what information is left behind when the source and executable files are deleted. Access methods are indicated with m (write access), a (read or execute access), and c (attribute change).