freq 735 B

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  1. .TH FREQ 1
  2. .SH NAME
  3. freq \- print histogram of character frequencies
  4. .SH SYNOPSIS
  5. .B freq
  6. [
  7. .B -dxocr
  8. ]
  9. [
  10. .I file ...
  11. ]
  12. .SH DESCRIPTION
  13. .I Freq
  14. reads the given files (default standard input)
  15. and prints histograms of the character frequencies.
  16. By default,
  17. .I freq
  18. counts each byte as a character;
  19. under the
  20. .B -r
  21. option it instead counts
  22. .SM UTF
  23. sequences, that is, runes.
  24. .PP
  25. Each non-zero entry of the table is printed preceded by the byte value,
  26. in decimal, octal, hex, and
  27. Unicode
  28. character (if printable).
  29. If any options are given, the
  30. .BR -d ,
  31. .BR -x ,
  32. .BR -o ,
  33. .B -c
  34. flags specify a subset of value formats: decimal, hex, octal, and
  35. character, respectively.
  36. .SH SOURCE
  37. .B /sys/src/cmd/freq.c
  38. .SH SEE ALSO
  39. .IR utf (6),
  40. .IR wc (1)