LFCS: Linux Foundation Certified System AdministratorDemo

By Linux Foundation · Question Mode

QuestionQ175

Essential Commands

What does an exit status of 0 signify regarding a process?

  • A The process ended without any problems.
  • B The process was terminated by the user.
  • C The process couldn't finish correctly.
  • D The process waited for an input but got none.
  • E The process finished in time.
Explanation

By POSIX and Unix/Linux convention, when a process terminates it returns an exit status (exit code) to the parent process or shell. An exit status of 0 signifies that the process completed successfully with no errors. Any non-zero exit status indicates that some kind of error or abnormal condition occurred during execution. This convention is used consistently by shells, scripts, and system utilities to determine success or failure of a command.

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