O'Reilly logo

Introduction to Unix and Shell Programming by M. G. Venkateshmurthy

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

12

INTRODUCTION TO SYSTEM ADMINISTRATION

Chapter Objectives
  • How to become a superuser?
  • The duties and privileges of a superuser or a system administrator
  • The details of /etc/passwd and /etc/shadow files
  • The method of providing security by using passwords, the crypt command and restricted shell (rsh)
  • The management of disk space by using the du and df commands
  • Taking backups as well as restoring of files/directories using the cpio and tar commands
  • Details about an inode structure
  • The implementer’s view point of a file system
  • How is a file accessed by the system?
  • How to attach (mount) and detach (unmount) file systems?
  • The meaning of link files and how to make file links

The normal functioning of a system depends directly upon how well ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required