What is Rc: Definition and 643 Discussions

rc (for "run commands") is the command line interpreter for Version 10 Unix and Plan 9 from Bell Labs operating systems. It resembles the Bourne shell, but its syntax is somewhat simpler. It was created by Tom Duff, who is better known for an unusual C programming language construct ("Duff's device").A port of the original rc to Unix is part of Plan 9 from User Space. A rewrite of rc for Unix-like operating systems by Byron Rakitzis is also available but includes some incompatible changes.
Rc uses C-like control structures instead of the original Bourne shell's ALGOL-like structures, except that it uses an if not construct instead of else, and has a Bourne-like for loop to iterate over lists. In rc, all variables are lists of strings, which eliminates the need for constructs like "$@". Variables are not re-split when expanded. The language is described in Duff's paper.

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  1. D

    How Do Scale Calculations Affect RC Car Physics?

    Hello All, I'm doing some fun at home experiments with my 1:6 scale RC car and I wanted do some camparisons with its full scale counter part. Mainly how jumping the two off a ramp (Duke's of Hazzard style). I wanted to know if you can help me with confirming some of my scaling...
  2. T

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  3. O

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  4. D

    Engineering RC Circuit + Dependent Voltage Source

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  5. D

    Engineering Solving RC Circuit Pulse with Step-by-Step Approach

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  6. D

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  7. B

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  8. J

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  9. M

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  10. S

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  11. B

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  12. R

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  13. K

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  14. A

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  15. Cyrus

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  16. P

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  17. T

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  18. B

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  19. T

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  20. Cyrus

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  21. Cyrus

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  22. M

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  23. F

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  24. O

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  25. E

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  26. M

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  27. D

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  28. N

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  29. C

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  30. D

    Solve RC Circuit: Find Unknown Capacitor Value

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  31. S

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  32. D

    What is the missing value in this parallel RC circuit problem?

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  33. E

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  34. W

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  35. K

    Solving an RC Circuit with 68.0% Charge in 0.980s

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  36. J

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  37. V

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  38. R

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  39. G

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  40. I

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  41. H

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  42. S

    What is the significance of the RC time constant in a simple RC circuit?

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  43. N

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