Table of Contents

28. Access Control Lists in Linux
28.1. Advantages of ACLs
28.2. Definitions
28.3. Handling ACLs
28.4. ACL Support in Applications
29. System Monitoring Utilities
29.1. List of Open Files: lsof
29.2. User Accessing Files: fuser
29.3. File Properties: stat
29.4. Processes: top
29.5. Process List: ps
29.6. Process Tree: pstree
29.7. Who Is Doing What: w
29.8. Memory Usage: free
29.9. Kernel Ring Buffer: dmesg
29.10. File Systems and Their Usage: mount, df, and du
29.11. The /proc File System
29.12. procinfo
29.13. PCI Resources: lspci
29.14. System Calls of a Program Run: strace
29.15. Library Calls of a Program Run: ltrace
29.16. Specifying the Required Library: ldd
29.17. Additional Information about ELF Binaries
29.18. Interprocess Communication: ipcs
29.19. Time Measurement with time