Crossword: Operating Systems

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Across
  1. 1. a character or group of characters displayed by shell when it is ready to accept a new command
  2. 5. a vi editor command to delete a line
  3. 7. is the firmware used to perform hardware initialization during the booting process
  4. 10. a shell command to view the last typed command of the session
  5. 11. a backbone of the Unix operating system that is loaded into the memory on system startup.
  6. 12. a functionality that enables the output of one program to be supplied to another program or file
Down
  1. 2. a shell command to remove files
  2. 3. a shell command to create files
  3. 4. a mobile based operating system
  4. 5. a Linux based operating system
  5. 6. name of pet and a shell command
  6. 8. a utility program that interprets commands typed by the users
  7. 9. a filter command for searching a pattern