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

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7

THE PROCESS

Chapter Objectives
  • The meaning of a process and different types of processes
  • The mechanism of process creation
  • Run a job in the background and avert its termination with nohup
  • View the process attributes with ps
  • Adjusting process priorities with the nice command
  • The meaning of process termination signals and handling them
  • To use the kill command to terminate processes
  • Use the job control commands to switch control from one job to another
  • Scheduling jobs for execution—The at, batch and cron commands

Because Unix is a multi-user as well as a multi-tasking system, number of programs can run simultaneously. All the programs that have been loaded into the memory for execution are referred to as processes. This chapter begins ...

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