Guess what!

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Across
  1. 2. Official mascot of the Linux kernel.
  2. 4. Founder of free software foundation.
  3. 5. A boot loader package from the GNU Project.
  4. 6. Linux uses the freeware ____ shell as its default command interpreter.
  5. 9. Any collection of computer instructions, possibly with comments, written using a human-readable programming language, usually as plain text.
  6. 11. Stephen Bourne at AT&T Bell Labs developed the ____ shell as the first UNIX command processor.
  7. 12. A software that is available for use at no monetary cost.
  8. 13. An organization dedicated to cause of promoting open source software.
Down
  1. 1. An open source software named after a subspecies of zebra.
  2. 3. Who coined the term 'open source'?
  3. 4. Github is written in which language.
  4. 5. widely used free software license, which guarantees end users the freedom to run, study, share and modify the software.
  5. 7. The ____ key in the less command pages one screen forward.
  6. 8. To determine information about who is logged in, you can use the ____ command.
  7. 10. Which is world’s largest non-commercial Linux distribution?