Chapter summary .................................................................................................................................. 31
Chapter 3 Beginning with Ubuntu Server .............................................................................................. 32
Logging in .............................................................................................................................................. 32
The sudo command ............................................................................................................................... 32
Why is sudo better? ............................................................................................................................. 33
The sudoers file ................................................................................................................................... 33
Chapter summary .................................................................................................................................. 39
Chapter 4 Managing Files and Directories ............................................................................................ 41
File and directory names in Ubuntu Server ........................................................................................... 41
Exploration and navigation..................................................................................................................... 41
Finding where the user is ..................................................................................................................... 41
Showing the contents of directories ..................................................................................................... 42
Moving around the filesystem .............................................................................................................. 44
Viewing files ........................................................................................................................................... 45
File and directory manipulation .............................................................................................................. 47
Creating files ........................................................................................................................................ 47
Creating directories .............................................................................................................................. 49
Moving and renaming files and directories .......................................................................................... 49
Copying files and directories ................................................................................................................ 50
Removing files and directories ............................................................................................................. 51
Editing files ............................................................................................................................................. 52
Chapter summary .................................................................................................................................. 54
Chapter 5 Security ................................................................................................................................... 55
Overview ................................................................................................................................................ 55
User management ................................................................................................................................. 55
Where is the root user? ....................................................................................................................... 55
Managing users and groups ................................................................................................................ 55
