PPT Slide
File meta-information - information about the file that isn’t in the file, such as:
- Owner, permissions, timestamps, size, etc.
- Try an “ls -l” on a typical UNIX file
- CRA-1 O/S has a UNIX-style stat() syscall:
int stat(int fileHandle, StatStruct *statInfo)
- Actual UNIX stat() call is documented on xi via “man -s 2 stat”; lots of interesting file meta-info
- UNIX “chmod” command and “chmod(2)” (note use of “2” to indicate which man section) can change some of the UNIX meta-info