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Unix Architecture.............................................................................................................................................2
Unix — File Management..........................................................................................................................8
Listing Files ......................................................................................................................................................8
Metacharacters .............................................................................................................................................10
Hidden Files...................................................................................................................................................10
Creating Files.................................................................................................................................................11
Editing Files....................................................................................................................................................11
Display Content of a File................................................................................................................................12
Counting Words in a File ...............................................................................................................................12
Copying Files..................................................................................................................................................13
Renaming Files...............................................................................................................................................13
Deleting Files.................................................................................................................................................13
Standard Unix Streams..................................................................................................................................14
Unix — Directory Management ..............................................................................................................15
Home Directory .............................................................................................................................................15
Absolute/Relative Pathnames.......................................................................................................................15
Listing Directories..........................................................................................................................................16
Creating Directories.......................................................................................................................................16
Creating Parent Directories...........................................................................................................................17
Removing Directories....................................................................................................................................18
Changing Directories .....................................................................................................................................18
Renaming Directories....................................................................................................................................18
The directories . (dot) and .. (dot dot)...........................................................................................................19
Unix — File Permission / Access Modes..................................................................................................20
The Permission Indicators .............................................................................................................................20
File Access Modes..........................................................................................................................................20
Directory Access Modes................................................................................................................................21
Changing Permissions....................................................................................................................................21
Using chmod with Absolute Permissions ......................................................................................................22
Changing Owners and Groups.......................................................................................................................23
Changing Ownership .....................................................................................................................................24
Changing Group Ownership ..........................................................................................................................24
SUID and SGID File Permission ......................
Unix — File Permission / Access Modes..................................................................................................20
The Permission Indicators .............................................................................................................................20
File Access Modes..........................................................................................................................................20
Directory Access Modes................................................................................................................................21
Changing Permissions....................................................................................................................................21
Using chmod with Absolute Permissions ......................................................................................................22
Changing Owners and Groups.......................................................................................................................23
Changing Ownership .....................................................................................................................................24
Changing Group Ownership ..........................................................................................................................24
SUID and SGID File Permission ........
Unix — Network Communication Utilities ..............................................................................................46
The ping Utility ..............................................................................................................................................46
The ftp Utility.................................................................................................................................................47
The telnet Utility............................................................................................................................................49
The finger Utility............................................................................................................................................50
Starting the vi Editor......................................................................................................................................52
Operation Modes ..........................................................................................................................................53
Getting Out of vi ............................................................................................................................................53
Moving within a File ......................................................................................................................................54
Control Commands........................................................................................................................................56
Editing Files....................................................................................................................................................57
Deleting Characters.......................................................................................................................................57
Change Commands........................................................................................................................................58
Copy and Paste Commands...........................................................................................................................58
Advanced Commands....................................................................................................................................59
Word and Character Searching......................................................................................................................60
Set Commands...............................................................................................................................................61
Running Commands ......................................................................................................................................62
Replacing Text ...............................................................................................................................................62
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