Chapter Objectives
  • Evolution and features of Unix
  • Unix system structure
  • The role of a shell as a command processor
  • Using Unix
  • Types of Unix commands and their general features
  • Some basic general utility commands
  • Getting on-line help
  • Command substitution
  • Giving multiple commands

Unix has a very long history and a large number of commands. This chapter begins with a brief discussion of the history of Unix development. The salient features of a Unix system and its various components is discussed briefly. The meaning of a command, broader classification of Unix commands, and the action of some of the useful commands are also discussed here. Details about a particular command can be obtained by going through the manual ...

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