bash printing extended ASCII characters

nutthick · 02-04-2005, 12:44 PM

I'm trying to print ? ? ? and other extended ascii character in bash using printf, but they don't seem to be regonised. The syntax I'm using is

printf "\###"

where ### is the octal value for the character.

Does anyone know if extended ascii is supported in bash and if so how to print the characters to the screen?

Thanks

keefaz · 02-04-2005, 12:50 PM

That depends a little of the font used in terminal (what do you call extended ascii ?)

Try (in hexa) :
echo -e "\xA9"

and in octal :
echo -e "\0251"

nutthick · 02-04-2005, 12:57 PM

I've been programming for a few years and I never knew that 'extended ascii' was so ambiguous, but now I've done some reading I realise there is no such thing.

When I say extended ascii, I guess I mean IBM DOS extended ascii. Have a look at

http://www.lookuptables.com/

there is some 'extended ascii' at the bottom.

keefaz · 02-04-2005, 01:04 PM

Lol, I see... For me this is just ascii (but I don't program for a few years, just the last one)

I would say again that the display of these chars depends of the terminal font, eg if the char
won't display, it may means that this char is not built in the font.

nutthick · 02-04-2005, 01:10 PM

I've been reading something about codepage. That might have something to do with it. bash has something there about 127, I'm just doing a script to find out what it is, I'll let you know.

nutthick · 02-04-2005, 01:22 PM

Well nothing too good. Below is a list of the ascii code outputs through printf from 0 to 400. The left column is the octal code, the right is the output. Hope this helps someone out, because it helped me squat

0
1
2
3
4
5
6
7
8 \8
9 \9
10
11
12

13
14
15
16
17
18 8
19 9
20
21
22
23
24
25
26
27
28 8
29 9
30
31
32
33
34
35
36
37
38 8
39 9
40
41 !
42 "
43 #
44 $
45 %
46 &
47 '
48 8
49 9
50 (
51 )
52 *
53 +
54 ,
55 -
56 .
57 /
58 8
59 9
60 0
61 1
62 2
63 3
64 4
65 5
66 6
67 7
68 8
69 9
70 8
71 9
72 :
73 ;
74 <
75 =
76 >
77 ?
78 8
79 9
80 \80
81 \81
82 \82
83 \83
84 \84
85 \85
86 \86
87 \87
88 \88
89 \89
90 \90
91 \91
92 \92
93 \93
94 \94
95 \95
96 \96
97 \97
98 \98
99 \99
100 @
101 A
102 B
103 C
104 D
105 E
106 F
107 G
108 8
109 9
110 H
111 I
112 J
113 K
114 L
115 M
116 N
117 O
118 8
119 9
120 P
121 Q
122 R
123 S
124 T
125 U
126 V
127 W
128
8
129
9
130 X
131 Y
132 Z
133 [
134 \
135 ]
136 ^
137 _
138 8
139 9
140 `
141 a
142 b
143 c
144 d
145 e
146 f
147 g
148 8
149 9
150 h
151 i
152 j
153 k
154 l
155 m
156 n
157 o
158
8
159
9
160 p
161 q
162 r
163 s
164 t
165 u
166 v
167 w
168 8
169 9
170 x
171 y
172 z
173 {
174 |
175 }
176 ~
177
178 8
179 9
180 80
181 81
182 82
183 83
184 84
185 85
186 86
187 87
188 88
189 89
190 90
191 91
192 92
193 93
194 94
195 95
196 96
197 97
198 98
199 99
200 €
201 ?
202 ‚
203 ƒ
204 „
205 …
206 †
207 ‡
208 8
209 9
210 ˆ
211 ‰
212 Š
213 ‹
214 Œ
215 ?
216 Ž
217 ?
218 8
219 9
220 ?
221 ‘
222 ’
223 “
224 ”
225 •
226 –
227 —
228 8
229 9
230 ˜
231 ™
232 š
233 ›
234 œ
235 ?
236 ž
237 Ÿ
238 8
239 9
240 _
241 ¡
242 ¢
243 £
244 ¤
245 ¥
246 ¦
247 §
248 8
249 9
250 ¨
251 ©
252 ª
253 «
254 ¬
255 _
256 ®
257 ¯
258 8
259 9
260 °
261 ±
262 ²
263 ³
264 ´
265 µ
266 ¶
267 ·
268 8
269 9
270 ¸
271 ¹
272 º
273 »
274 ¼
275 ½
276 ¾
277 ¿
278 8
279 9
280 80
281 81
282 82
283 83
284 84
285 85
286 86
287 87
288 88
289 89
290 90
291 91
292 92
293 93
294 94
295 95
296 96
297 97
298 98
299 99
300 À
301 Á
302 Â
303 Ã
304 Ä
305 Å
306 Æ
307 Ç
308 8
309 9
310 È
311 É
312 Ê
313 Ë
314 Ì
315 Í
316 Î
317 Ï
318 8
319 9
320 Ð
321 Ñ
322 Ò
323 Ó
324 Ô
325 Õ
326 Ö
327 ×
328 8
329 9
330 Ø
331 Ù
332 Ú
333 Û
334 Ü
335 Ý
336 Þ
337 ß
338 8
339 9
340 à
341 á
342 â
343 ã
344 ä
345 å
346 æ
347 ç
348 8
349 9
350 è
351 é
352 ê
353 ë
354 ì
355 í
356 î
357 ï
358 8
359 9
360 ð
361 ñ
362 ò
363 ó
364 ô
365 õ
366 ö
367 ÷
368 8
369 9
370 ø
371 ù
372 ú
373 û
374 ü
375 ý
376 þ
377 ÿ
378 8
379 9
380 80
381 81
382 82
383 83
384 84
385 85
386 86
387 87
388 88
389 89
390 90
391 91
392 92
393 93
394 94
395 95
396 96
397 97
398 98
399 99
400

keefaz · 02-04-2005, 02:15 PM

It should be more educative to post code than result of script

Something like:

Code:

#!/bin/bash

i=0
while [ $i -lt 400 ]; do
    printf "%i : %b\n" "$i" "\0$i"
    let "i++"
done