Permissions problems got you down? Turn to Unix expert Brian Tanaka's unique guide to the permissions in Mac OS X 10.6 Snow Leopard that control access to your files, folders, and disks. You'll learn how to keep files private, when to set Ignore Permissions, what happens when you repair permissions, how to delete stuck files, and the best ways to solve permissions-related problems. Advanced concepts include the sticky bit, Snow Leopard's increasingly important access control lists (ACLs), bit masks, and symbolic versus absolute ways to set permissions. The book covers how to take control of permissions via the Finder, with the Mac utility FileXaminer, and using the Unix command line.
Read this book to learn the answers to questions like: • Why do so many problem-solving sites suggest that I repair permissions? • Why can't I always access my own files when I boot from an external drive? • What should I do if someone tells me to "set the permissions to -rw-r--r--"? • What are promiscuous permissions, and should I inform the vice squad? • What's new about access control lists (ACLs) in Snow Leopard? • What are the default permissions for copied files? • Without the NetInfo database, how do I edit account settings like numeric UID? • How do I work with account groups from System Preferences?
Table of Contents • Read Me First • Introduction • Permissions Quick Start • Problems and Solutions • About Permissions • The Anatomy of Permissions • Choose a Method of Setting Permissions • Set Permissions Using the Info Window • Set Permissions Using FileXaminer • Use Access Control Lists • Understand Default Permissions • Work with User Names, UIDs, and GIDs • Understand Ignore Ownership • Repair Permissions with Disk Utility • Learn Advanced Unix Techniques • Learn More • Appendix A: Fixes for Common Problems • Appendix B: Converting to Octal • Appendix C: Use the man Command
Read Me First This book helps you control the often-perplexing world of permissions in Mac OS X 10.6 Snow Leopard. It explains how permissions work, how to resolve common problems, and how to best control access to your files in a variety of situations. This book was written by Brian Tanaka, edited by Geoff Duncan, and published by TidBITS Publishing Inc.