1 |
|
2 |
|
3 |
v=abcd
|
4 |
echo ${v%d} ${v%%cd}
|
5 |
## stdout: abc ab
|
6 |
|
7 |
|
8 |
v=abcd
|
9 |
echo ${v#a} ${v##ab}
|
10 |
## stdout: bcd cd
|
11 |
|
12 |
|
13 |
a=(1a 2a 3a)
|
14 |
argv.py ${a[@]%a}
|
15 |
## stdout: ['1', '2', '3']
|
16 |
## status: 0
|
17 |
## N-I dash/mksh/ash stdout-json: ""
|
18 |
## N-I dash/ash status: 2
|
19 |
## N-I mksh status: 1
|
20 |
|
21 |
|
22 |
set -- 1a 2a 3a
|
23 |
argv.py ${@%a}
|
24 |
## stdout: ['1', '2', '3']
|
25 |
## status: 0
|
26 |
## N-I dash/ash stdout: ['1a', '2a', '3']
|
27 |
## N-I dash/ash status: 0
|
28 |
## N-I mksh stdout-json: ""
|
29 |
## N-I mksh status: 1
|
30 |
|
31 |
|
32 |
echo ${undef%suffix}
|
33 |
## stdout:
|
34 |
|
35 |
|
36 |
v=aabbccdd
|
37 |
echo ${v%c*}
|
38 |
## stdout: aabbc
|
39 |
|
40 |
|
41 |
v=aabbccdd
|
42 |
echo ${v%%c*}
|
43 |
## stdout: aabb
|
44 |
|
45 |
|
46 |
v=aabbccdd
|
47 |
echo ${v#*b}
|
48 |
## stdout: bccdd
|
49 |
|
50 |
|
51 |
v=aabbccdd
|
52 |
echo ${v##*b}
|
53 |
## stdout: ccdd
|
54 |
|
55 |
|
56 |
v=abc
|
57 |
echo ${v%[[:alpha:]]}
|
58 |
## stdout: ab
|
59 |
## N-I mksh stdout: abc
|
60 |
|
61 |
|
62 |
# NOTE: LANG is set to utf-8.
|
63 |
v='μ-'
|
64 |
echo ${v#?} # ? is a glob that stands for one character
|
65 |
echo ${v##?}
|
66 |
v='-μ'
|
67 |
echo ${v%?} # ? is a glob that stands for one character
|
68 |
echo ${v%%?}
|
69 |
## STDOUT:
|
70 |
-
|
71 |
-
|
72 |
-
|
73 |
-
|
74 |
## BUG dash/mksh/ash stdout-repr: '\xbc-\n\xbc-\n-\xce\n-\xce\n'
|
75 |
## BUG zsh stdout-repr: '\n\n\n\n'
|
76 |
|
77 |
|
78 |
s='--x--'
|
79 |
argv.py "${s%%-*}" "${s%-*}" "${s#*-}" "${s##*-}"
|
80 |
## STDOUT:
|
81 |
['', '--x-', '-x--', '']
|
82 |
## END
|
83 |
|
84 |
|
85 |
s='abcd'
|
86 |
argv.py "${s%%abcd}" "${s%abcd}" "${s#abcd}" "${s##abcd}"
|
87 |
# failure case:
|
88 |
argv.py "${s%%abcde}" "${s%abcde}" "${s#abcde}" "${s##abcde}"
|
89 |
## STDOUT:
|
90 |
['', '', '', '']
|
91 |
['abcd', 'abcd', 'abcd', 'abcd']
|
92 |
## END
|
93 |
|
94 |
|
95 |
# This case was found in Kubernetes and others
|
96 |
array=(aa bb '')
|
97 |
argv.py ${array[@]/#/prefix-}
|
98 |
## STDOUT:
|
99 |
['prefix-aa', 'prefix-bb', 'prefix-']
|
100 |
## END
|
101 |
## N-I dash/ash status: 2
|
102 |
## N-I dash/ash stdout-json: ""
|
103 |
## N-I mksh status: 1
|
104 |
## N-I mksh stdout-json: ""
|
105 |
|
106 |
|
107 |
array=(aa bb '')
|
108 |
argv.py ${array[@]/%/-suffix}
|
109 |
## STDOUT:
|
110 |
['aa-suffix', 'bb-suffix', '-suffix']
|
111 |
## END
|
112 |
## N-I dash/ash status: 2
|
113 |
## N-I dash/ash stdout-json: ""
|
114 |
## N-I mksh status: 1
|
115 |
## N-I mksh stdout-json: ""
|
116 |
|
117 |
|
118 |
# I guess dash and mksh treat unquoted [ as an invalid glob?
|
119 |
var='[foo]'
|
120 |
echo ${var#[}
|
121 |
echo ${var#"["}
|
122 |
echo "${var#[}"
|
123 |
echo "${var#"["}"
|
124 |
## STDOUT:
|
125 |
foo]
|
126 |
foo]
|
127 |
foo]
|
128 |
foo]
|
129 |
## END
|
130 |
## OK mksh STDOUT:
|
131 |
[foo]
|
132 |
foo]
|
133 |
[foo]
|
134 |
foo]
|
135 |
## END
|
136 |
## BUG zsh stdout-json: ""
|
137 |
## BUG zsh status: 1
|
138 |
|
139 |
|
140 |
# LooksLikeGlob('[]') is true
|
141 |
# I guess dash, mksh, and zsh treat unquoted [ as an invalid glob?
|
142 |
var='[]foo[]'
|
143 |
echo ${var#[]}
|
144 |
echo ${var#"[]"}
|
145 |
echo "${var#[]}"
|
146 |
echo "${var#"[]"}"
|
147 |
## STDOUT:
|
148 |
foo[]
|
149 |
foo[]
|
150 |
foo[]
|
151 |
foo[]
|
152 |
## END
|
153 |
## OK mksh/zsh STDOUT:
|
154 |
[]foo[]
|
155 |
foo[]
|
156 |
[]foo[]
|
157 |
foo[]
|
158 |
## END
|
159 |
|
160 |
|
161 |
var='[foo]'
|
162 |
echo ${var#?}
|
163 |
echo ${var#"?"}
|
164 |
echo "${var#?}"
|
165 |
echo "${var#"?"}"
|
166 |
## STDOUT:
|
167 |
foo]
|
168 |
[foo]
|
169 |
foo]
|
170 |
[foo]
|
171 |
## END
|
172 |
|
173 |
|
174 |
var='[a]foo[]'
|
175 |
echo ${var#[a]}
|
176 |
echo ${var#"[a]"}
|
177 |
echo "${var#[a]}"
|
178 |
echo "${var#"[a]"}"
|
179 |
## STDOUT:
|
180 |
[a]foo[]
|
181 |
foo[]
|
182 |
[a]foo[]
|
183 |
foo[]
|
184 |
## END
|
185 |
|
186 |
|
187 |
var=$'\n'
|
188 |
argv.py "${var#?}"
|
189 |
argv.py "${var%''}"
|
190 |
argv.py "${var%"${var#?}"}"
|
191 |
var='a'
|
192 |
argv.py "${var#?}"
|
193 |
argv.py "${var%''}"
|
194 |
argv.py "${var%"${var#?}"}"
|
195 |
## STDOUT:
|
196 |
['']
|
197 |
['\n']
|
198 |
['\n']
|
199 |
['']
|
200 |
['a']
|
201 |
['a']
|
202 |
## END
|
203 |
## N-I dash STDOUT:
|
204 |
['\\n']
|
205 |
['$\\n']
|
206 |
['$']
|
207 |
['']
|
208 |
['a']
|
209 |
['a']
|
210 |
## END
|
211 |
|
212 |
|
213 |
x=abc
|
214 |
argv.py "${x#*}"
|
215 |
argv.py "${x##*}"
|
216 |
argv.py "${x%*}"
|
217 |
argv.py "${x%%*}"
|
218 |
## STDOUT:
|
219 |
['abc']
|
220 |
['']
|
221 |
['abc']
|
222 |
['']
|
223 |
## END
|
224 |
## BUG zsh STDOUT:
|
225 |
['abc']
|
226 |
['']
|
227 |
['ab']
|
228 |
['']
|
229 |
## END
|
230 |
|
231 |
|
232 |
x=abc
|
233 |
argv.py "${x#?}"
|
234 |
argv.py "${x##?}"
|
235 |
argv.py "${x%?}"
|
236 |
argv.py "${x%%?}"
|
237 |
## STDOUT:
|
238 |
['bc']
|
239 |
['bc']
|
240 |
['ab']
|
241 |
['ab']
|
242 |
## END
|
243 |
|
244 |
|
245 |
x=abc
|
246 |
argv.py "${x#abc}"
|
247 |
argv.py "${x##abc}"
|
248 |
argv.py "${x%abc}"
|
249 |
argv.py "${x%%abc}"
|
250 |
## STDOUT:
|
251 |
['']
|
252 |
['']
|
253 |
['']
|
254 |
['']
|
255 |
## END
|
256 |
|
257 |
|
258 |
x=abc
|
259 |
argv.py "${x#}"
|
260 |
argv.py "${x##}"
|
261 |
argv.py "${x%}"
|
262 |
argv.py "${x%%}"
|
263 |
## STDOUT:
|
264 |
['abc']
|
265 |
['abc']
|
266 |
['abc']
|
267 |
['abc']
|
268 |
## END
|
269 |
|
270 |
|
271 |
x=μabcμ
|
272 |
echo "${x#?abc?}"
|
273 |
echo "${x##?abc?}"
|
274 |
echo "${x%?abc?}"
|
275 |
echo "${x%%?abc?}"
|
276 |
## STDOUT:
|
277 |
|
278 |
|
279 |
|
280 |
|
281 |
## BUG dash/mksh/ash STDOUT:
|
282 |
μabcμ
|
283 |
μabcμ
|
284 |
μabcμ
|
285 |
μabcμ
|
286 |
## END
|
287 |
|
288 |
|
289 |
x=μabcμ
|
290 |
argv.py "${x#}"
|
291 |
argv.py "${x##}"
|
292 |
argv.py "${x%}"
|
293 |
argv.py "${x%%}"
|
294 |
## STDOUT:
|
295 |
['\xce\xbcabc\xce\xbc']
|
296 |
['\xce\xbcabc\xce\xbc']
|
297 |
['\xce\xbcabc\xce\xbc']
|
298 |
['\xce\xbcabc\xce\xbc']
|
299 |
## END
|
300 |
|
301 |
|
302 |
var='$foo'
|
303 |
echo 1 "${var#$foo}"
|
304 |
echo 2 "${var#\$foo}"
|
305 |
|
306 |
var='}'
|
307 |
echo 10 "${var#}}"
|
308 |
echo 11 "${var#\}}"
|
309 |
echo 12 "${var#'}'}"
|
310 |
echo 13 "${var#"}"}"
|
311 |
## STDOUT:
|
312 |
1 $foo
|
313 |
2
|
314 |
10 }}
|
315 |
11
|
316 |
12
|
317 |
13
|
318 |
## END
|
319 |
## BUG zsh STDOUT:
|
320 |
1 $foo
|
321 |
2
|
322 |
10 }}
|
323 |
11
|
324 |
12 }'}
|
325 |
13
|
326 |
## END
|
327 |
|
328 |
|
329 |
x='foo()'
|
330 |
echo 1 ${x%*\(\)}
|
331 |
echo 2 ${x%%*\(\)}
|
332 |
echo 3 ${x#*\(\)}
|
333 |
echo 4 ${x##*\(\)}
|
334 |
## STDOUT:
|
335 |
1 foo
|
336 |
2
|
337 |
3
|
338 |
4
|
339 |
## END
|
340 |
|
341 |
|
342 |
case $SH in (dash|zsh|ash) exit ;; esac
|
343 |
|
344 |
shopt -s extglob
|
345 |
|
346 |
x='foo()'
|
347 |
echo 1 ${x%*(foo|bar)'()'}
|
348 |
echo 2 ${x%%*(foo|bar)'()'}
|
349 |
echo 3 ${x#*(foo|bar)'()'}
|
350 |
echo 4 ${x##*(foo|bar)'()'}
|
351 |
## STDOUT:
|
352 |
1 foo
|
353 |
2
|
354 |
3
|
355 |
4
|
356 |
## END
|
357 |
## N-I dash/zsh/ash stdout-json: ""
|