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Man Pages
unihist(1) FreeBSD General Commands Manual unihist(1)

unihist - Generate a histogram of the characters in a Unicode file

unihist ([option flags])

unihist generates a histogram of the characters in its input, which must be encoded in UTF-8 Unicode. By default, for each character it prints the frequency of the character as a percentage of the total, the absolute number of tokens in the input, the UTF-32 code in hexadecimal, and, if the character is displayable, the glyph itself as UTF-8 Unicode. Command line flags allow unwanted information to be suppressed. In particular, note that by suppressing the percentages and counts it is possible to generate a list of the unique characters in the input.

Output is produced ordered by character code. To sort it in descending order of frequency, pipe the output into the command:

sort -k1 -n -r

By default, unihist handles all of Unicode. To reduce memory usage and increase speed, it may be compiled so as to handle only the Basic Multilingual Plane (plane 0) by defining BMPONLY.

-c
Suppress printing of counts and percentages.
-g
Suppress printing of glyphs.
-h
Print usage information.
-u
Suppress printing of the Unicode code as text.
-v
Print version information.

uniname (1)

Unicode Standard, version 5.0

Bill Poser
billposer@alum.mit.edu

GNU General Public License

May, 2008

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