KOI8-U(7)

๐Ÿ“ฆ
version 6.20 ยท 13 versions
, in arch rolling, nixpkgs unstable

๐Ÿฆ‹ NAME ๐Ÿฆ‹

okay so bestie, <rainbow>koi8-u</rainbow> โ€” it's the Ukrainian character set, written out in octal, decimal, and hexadecimal ๐Ÿ’…. (The page header up top calls it KOI8-U(7), and it lives in section 7 of the manual โ€” miscellaneous info, iykyk.)

โœจ DESCRIPTION โœจ

RFC 2310 is the moment ๐Ÿ“œ โ€” it defines an 8-bit character set called KOI8-U. And what does KOI8-U do? It encodes the characters used in Ukrainian and Byelorussian. Like, it's giving multilingual icon energy ๐ŸŒธ.

๐ŸŽ€ KOI8-U characters ๐ŸŽ€

Here's the whole cast of characters in KOI8-U that are printable and not already listed over in the ascii(7) manual page. Columns are Oct, Dec, Hex, Char, Description โ€” and yes, the descriptions are all in flawless uppercase because they're fancy like that ๐Ÿ‘‘.

Oct   Dec   Hex   Char   Description
โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€
200   128   80     โ”€     BOX DRAWINGS LIGHT HORIZONTAL
201   129   81     โ”‚     BOX DRAWINGS LIGHT VERTICAL
202   130   82     โ”Œ     BOX DRAWINGS LIGHT DOWN AND RIGHT
203   131   83     โ”     BOX DRAWINGS LIGHT DOWN AND LEFT
204   132   84     โ””     BOX DRAWINGS LIGHT UP AND RIGHT
205   133   85     โ”˜     BOX DRAWINGS LIGHT UP AND LEFT
206   134   86     โ”œ     BOX DRAWINGS LIGHT VERTICAL AND RIGHT
207   135   87     โ”ค     BOX DRAWINGS LIGHT VERTICAL AND LEFT
210   136   88     โ”ฌ     BOX DRAWINGS LIGHT DOWN AND HORIZONTAL
211   137   89     โ”ด     BOX DRAWINGS LIGHT UP AND HORIZONTAL
212   138   8A     โ”ผ     BOX DRAWINGS LIGHT VERTICAL AND HORIZONTAL
213   139   8B     โ–€     UPPER HALF BLOCK
214   140   8C     โ–„     LOWER HALF BLOCK
215   141   8D     โ–ˆ     FULL BLOCK
216   142   8E     โ–Œ     LEFT HALF BLOCK
217   143   8F     โ–     RIGHT HALF BLOCK
220   144   90     โ–‘     LIGHT SHADE
221   145   91     โ–’     MEDIUM SHADE
222   146   92     โ–“     DARK SHADE
223   147   93     โŒ      TOP HALF INTEGRAL
224   148   94     โ–      BLACK SQUARE
225   149   95     โˆ™     BULLET OPERATOR
226   150   96     โˆš     SQUARE ROOT
227   151   97     โ‰ˆ     ALMOST EQUAL TO
230   152   98     โ‰ค     LESS-THAN OR EQUAL TO
231   153   99     โ‰ฅ     GREATER-THAN OR EQUAL TO
232   154   9A           NO-BREAK SPACE
233   155   9B     โŒก     BOTTOM HALF INTEGRAL
234   156   9C     ยฐ     DEGREE SIGN
235   157   9D     ยฒ     SUPERSCRIPT TWO
236   158   9E     ยท     MIDDLE DOT
237   159   9F     รท     DIVISION SIGN
240   160   A0     โ•     BOX DRAWINGS DOUBLE HORIZONTAL
241   161   A1     โ•‘     BOX DRAWINGS DOUBLE VERTICAL
242   162   A2     โ•’     BOX DRAWINGS DOWN SINGLE AND RIGHT DOUBLE
243   163   A3     ั‘     CYRILLIC SMALL LETTER IO
244   164   A4     ั”     CYRILLIC SMALL LETTER UKRAINIAN IE
245   165   A5     โ•”     BOX DRAWINGS DOUBLE DOWN AND RIGHT
246   166   A6     ั–     CYRILLIC SMALL LETTER
                        BYELORUSSIAN-UKRAINIAN I
247   167   A7     ั—     CYRILLIC SMALL LETTER YI (Ukrainian)
250   168   A8     โ•—     BOX DRAWINGS DOUBLE DOWN AND LEFT
251   169   A9     โ•˜     BOX DRAWINGS UP SINGLE AND RIGHT DOUBLE
252   170   AA     โ•™     BOX DRAWINGS UP DOUBLE AND RIGHT SINGLE
253   171   AB     โ•š     BOX DRAWINGS DOUBLE UP AND RIGHT
254   172   AC     โ•›     BOX DRAWINGS UP SINGLE AND LEFT DOUBLE
255   173   AD     า‘     CYRILLIC SMALL LETTER GHE WITH UPTURN
256   174   AE     โ•     BOX DRAWINGS DOUBLE UP AND LEFT
257   175   AF     โ•ž     BOX DRAWINGS VERTICAL SINGLE AND RIGHT DOUBLE
260   176   B0     โ•Ÿ     BOX DRAWINGS VERTICAL DOUBLE AND RIGHT SINGLE
261   177   B1     โ•      BOX DRAWINGS DOUBLE VERTICAL AND RIGHT
262   178   B2     โ•ก     BOX DRAWINGS VERTICAL SINGLE AND LEFT DOUBLE
263   179   B3     ะ     CYRILLIC CAPITAL LETTER IO
264   180   B4     ะ„     CYRILLIC CAPITAL LETTER UKRAINIAN IE
265   181   B5     โ•ฃ     BOX DRAWINGS DOUBLE VERTICAL AND LEFT
266   182   B6     ะ†     CYRILLIC CAPITAL LETTER
                        BYELORUSSIAN-UKRAINIAN I
267   183   B7     ะ‡     CYRILLIC CAPITAL LETTER YI (Ukrainian)
270   184   B8     โ•ฆ     BOX DRAWINGS DOUBLE DOWN AND HORIZONTAL
271   185   B9     โ•ง     BOX DRAWINGS UP SINGLE AND HORIZONTAL DOUBLE
272   186   BA     โ•จ     BOX DRAWINGS UP DOUBLE AND HORIZONTAL SINGLE
273   187   BB     โ•ฉ     BOX DRAWINGS DOUBLE UP AND HORIZONTAL
274   188   BC     โ•ช     BOX DRAWINGS VERTICAL SINGLE
                        AND HORIZONTAL DOUBLE
275   189   BD     า     CYRILLIC CAPITAL LETTER GHE WITH UPTURN
276   190   BE     โ•ฌ     BOX DRAWINGS DOUBLE VERTICAL AND HORIZONTAL
277   191   BF     ยฉ     COPYRIGHT SIGN
300   192   C0     ัŽ     CYRILLIC SMALL LETTER YU
301   193   C1     ะฐ     CYRILLIC SMALL LETTER A
302   194   C2     ะฑ     CYRILLIC SMALL LETTER BE
303   195   C3     ั†     CYRILLIC SMALL LETTER TSE
304   196   C4     ะด     CYRILLIC SMALL LETTER DE
305   197   C5     ะต     CYRILLIC SMALL LETTER IE
306   198   C6     ั„     CYRILLIC SMALL LETTER EF
307   199   C7     ะณ     CYRILLIC SMALL LETTER GHE
310   200   C8     ั…     CYRILLIC SMALL LETTER HA
311   201   C9     ะธ     CYRILLIC SMALL LETTER I
312   202   CA     ะน     CYRILLIC SMALL LETTER SHORT I
313   203   CB     ะบ     CYRILLIC SMALL LETTER KA
314   204   CC     ะป     CYRILLIC SMALL LETTER EL
315   205   CD     ะผ     CYRILLIC SMALL LETTER EM
316   206   CE     ะฝ     CYRILLIC SMALL LETTER EN
317   207   CF     ะพ     CYRILLIC SMALL LETTER O
320   208   D0     ะฟ     CYRILLIC SMALL LETTER PE
321   209   D1     ั     CYRILLIC SMALL LETTER YA
322   210   D2     ั€     CYRILLIC SMALL LETTER ER
323   211   D3     ั     CYRILLIC SMALL LETTER ES
324   212   D4     ั‚     CYRILLIC SMALL LETTER TE
325   213   D5     ัƒ     CYRILLIC SMALL LETTER U
326   214   D6     ะถ     CYRILLIC SMALL LETTER ZHE
327   215   D7     ะฒ     CYRILLIC SMALL LETTER VE
330   216   D8     ัŒ     CYRILLIC SMALL LETTER SOFT SIGN
331   217   D9     ั‹     CYRILLIC SMALL LETTER YERU
332   218   DA     ะท     CYRILLIC SMALL LETTER ZE
333   219   DB     ัˆ     CYRILLIC SMALL LETTER SHA
334   220   DC     ั     CYRILLIC SMALL LETTER E
335   221   DD     ั‰     CYRILLIC SMALL LETTER SHCHA
336   222   DE     ั‡     CYRILLIC SMALL LETTER CHE
337   223   DF     ัŠ     CYRILLIC SMALL LETTER HARD SIGN
340   224   E0     ะฎ     CYRILLIC CAPITAL LETTER YU
341   225   E1     ะ     CYRILLIC CAPITAL LETTER A
342   226   E2     ะ‘     CYRILLIC CAPITAL LETTER BE
343   227   E3     ะฆ     CYRILLIC CAPITAL LETTER TSE
344   228   E4     ะ”     CYRILLIC CAPITAL LETTER DE
345   229   E5     ะ•     CYRILLIC CAPITAL LETTER IE
346   230   E6     ะค     CYRILLIC CAPITAL LETTER EF
347   231   E7     ะ“     CYRILLIC CAPITAL LETTER GHE
350   232   E8     ะฅ     CYRILLIC CAPITAL LETTER HA
351   233   E9     ะ˜     CYRILLIC CAPITAL LETTER I
352   234   EA     ะ™     CYRILLIC CAPITAL LETTER SHORT I
353   235   EB     ะš     CYRILLIC CAPITAL LETTER KA
354   236   EC     ะ›     CYRILLIC CAPITAL LETTER EL
355   237   ED     ะœ     CYRILLIC CAPITAL LETTER EM
356   238   EE     ะ     CYRILLIC CAPITAL LETTER EN
357   239   EF     ะž     CYRILLIC CAPITAL LETTER O
360   240   F0     ะŸ     CYRILLIC CAPITAL LETTER PE
361   241   F1     ะฏ     CYRILLIC CAPITAL LETTER YA
362   242   F2     ะ      CYRILLIC CAPITAL LETTER ER
363   243   F3     ะก     CYRILLIC CAPITAL LETTER ES
364   244   F4     ะข     CYRILLIC CAPITAL LETTER TE
365   245   F5     ะฃ     CYRILLIC CAPITAL LETTER U
366   246   F6     ะ–     CYRILLIC CAPITAL LETTER ZHE
367   247   F7     ะ’     CYRILLIC CAPITAL LETTER VE
370   248   F8     ะฌ     CYRILLIC CAPITAL LETTER SOFT SIGN
371   249   F9     ะซ     CYRILLIC CAPITAL LETTER YERU
372   250   FA     ะ—     CYRILLIC CAPITAL LETTER ZE
373   251   FB     ะจ     CYRILLIC CAPITAL LETTER SHA
374   252   FC     ะญ     CYRILLIC CAPITAL LETTER E
375   253   FD     ะฉ     CYRILLIC CAPITAL LETTER SHCHA
376   254   FE     ะง     CYRILLIC CAPITAL LETTER CHE
377   255   FF     ะช     CYRILLIC CAPITAL LETTER HARD SIGN
lowkey obsessed with how the box-drawing characters at 200โ€“212 and again at 240โ€“262 are just out here building whole little diagrams. icons only ๐Ÿซถ

๐ŸŒธ NOTES ๐ŸŒธ

So if you ever wondered "wait, isn't this just KOI8-R with a glow-up?" โ€” the tea is that the differences from KOI8-R live in exactly these hex positions: A4, A6, A7, AD, B4, B6, B7, and BD. Eight little spots. That's it. That's the whole diff. ๐Ÿ’…

๐Ÿ’œ SEE ALSO ๐Ÿ’œ

and that's the whole page bestie, no cap ๐Ÿ’– this one came from Linux man-pages 6.20, dated 2026-02-08, and it's the KOI8-U(7) girlie through and through. go forth and decode your Cyrillic ๐ŸŒˆโœจ

๐Ÿ“ฆ where this page comes from
  • arch rolling: man-pages 6.20-1 ยท BSD-2-Clause AND BSD-3-Clause AND BSD-4.3TAHOE AND BSD-4-Clause-UC AND GPL-1.0-or-later AND GPL-2.0-only AND GPL-2.0-or-later AND GPL-3.0-or-later AND LGPL-3.0-linking-exception AND LGPL-3.0-or-later AND LicenseRef-Public-Domain AND LicenseRef-UltraPermissive AND Linux-man-pages-1-para AND Linux-man-pages-copyleft AND Linux-man-pages-copyleft-2-para AND Linux-man-pages-copyleft-var AND MIT AND Spencer-94
  • nixpkgs unstable: man-pages 6.20
  • ๐Ÿ“œ the page's license: GPL-2.0-or-later
  • Copyright 2009, Lefteris Dimitroulakis <edimitro@tee.gr>
  • ๐Ÿ’– girlified by deepseek-ai/DeepSeek-V4.1-Flash on : a language model's rewrite of the original, under its terms