Table of Contents

27. Access Control Lists in Linux
27.1. Advantages of ACLs
27.2. Definitions
27.3. Handling ACLs
27.4. Support by Applications
28. System Monitoring Utilities
28.1. List of Open Files: lsof
28.2. User Accessing Files: fuser
28.3. File Properties: stat
28.4. Processes: top
28.5. Process List: ps
28.6. Process Tree: pstree
28.7. Who Is Doing What: w
28.8. Memory Usage: free
28.9. Kernel Ring Buffer: dmesg
28.10. File Systems and Their Usage: mount, df, and du
28.11. The /proc File System
28.12. procinfo
28.13. PCI Resources: lspci
28.14. System Calls of a Program Run: strace
28.15. Library Calls of a Program Run: ltrace
28.16. Specifying the Required Library: ldd
28.17. Interprocess Communication: ipcs