1 ## oils_failures_allowed: 5
2 ## compare_shells: bash dash mksh zsh ash yash
3
4 #### Fatal error
5 # http://landley.net/notes.html#20-06-2020
6
7 abc=${a?bc} echo hello; echo blah
8 ## status: 1
9 ## OK yash/dash/ash status: 2
10 ## stdout-json: ""
11
12 #### setting readonly var (bash is only one where it's non-fatal)
13 # http://landley.net/notes.html#20-06-2020
14
15 readonly abc=123
16 abc=def
17 echo status=$?
18 ## status: 2
19 ## stdout-json: ""
20 ## OK osh/zsh status: 1
21 ## BUG bash status: 0
22 ## BUG bash STDOUT:
23 status=1
24 ## END
25
26 #### readonly with temp binding
27 # http://landley.net/notes.html#20-06-2020
28
29 # temp binding
30 readonly abc=123
31 abc=def echo one
32 echo status=$?
33
34 echo potato < /does/not/exist || echo hello
35
36 ## status: 2
37 ## stdout-json: ""
38 ## OK osh/bash status: 0
39 ## OK osh/bash STDOUT:
40 one
41 status=0
42 hello
43 ## END
44 ## OK zsh status: 1
45
46 #### Failed redirect in assignment, vs. export
47
48 abc=def > /does/not/exist1
49 echo abc=$abc
50
51 export abc=def > /does/not/exist2
52 echo abc=$abc
53
54 ## STDOUT:
55 abc=
56 abc=
57 ## END
58 ## BUG bash STDOUT:
59 abc=def
60 abc=def
61 ## END
62 ## OK dash/ash/mksh STDOUT:
63 abc=
64 ## END
65 ## OK dash status: 2
66 ## OK mksh status: 1
67 ## OK ash status: 1
68
69 #### Evaluation order of redirect and ${undef?error}
70 # http://landley.net/notes.html#12-06-2020
71 rm *
72
73 rm -f walrus
74 $SH -c 'X=${x?bc} > walrus'
75 if test -f walrus; then echo 'exists1'; fi
76
77 rm -f walrus
78 $SH -c '>walrus echo ${a?bc}'
79 test -f walrus
80 if test -f walrus; then echo 'exists2'; fi
81 ## STDOUT:
82 exists1
83 ## END
84 ## OK bash stdout-json: ""
85
86 #### Function def in pipeline
87 # http://landley.net/notes.html#26-05-2020
88
89 echo hello | potato() { echo abc; } | echo ha
90
91 ## STDOUT:
92 ha
93 ## END
94
95 #### dynamic glob - http://landley.net/notes.html#08-05-2020
96 rm * # setup
97 X='*'; echo $X
98 echo "*"*".?z"
99 ## STDOUT:
100 _tmp
101 **.?z
102 ## END
103 ## BUG zsh status: 1
104 ## BUG zsh STDOUT:
105 *
106 ## END
107
108 #### no shebang
109 rm *
110
111 cat > snork << 'EOF'
112 echo hello $BLAH
113 EOF
114
115 chmod +x snork
116 $SH -c 'BLAH=123; ./snork'
117 $SH -c 'BLAH=123; exec ./snork'
118 $SH -c 'BLAH=123 exec ./snork'
119 ## STDOUT:
120 hello
121 hello
122 hello 123
123 ## END
124
125
126 #### IFS
127
128 IFS=x; X=abxcd; echo ${X/bxc/g}
129
130 X=a=\"\$a\"; echo ${X//a/{x,y,z}}
131
132 ## STDOUT:
133 agd
134 { ,y,z="${ ,y,z"}
135 ## END
136 ## BUG zsh STDOUT:
137 agd
138 {x,y,z}="${x,y,z}"
139 ## END
140 ## N-I dash status: 2
141 ## N-I dash stdout-json: ""
142
143 #### shift is fatal at top level?
144 # http://landley.net/notes.html#08-04-2020
145
146 # This makes a difference for zsh, but not for bash?
147 #set -o posix
148
149 $SH -c 'shift; echo hello'
150 ## STDOUT:
151 hello
152 ## END
153 ## OK dash status: 2
154 ## OK mksh status: 1
155 ## OK dash/mksh stdout-json: ""
156
157 #### var and func - http://landley.net/notes.html#19-03-2020
158 potato() { echo hello; }
159 potato=42
160 echo $potato
161
162 potato
163
164 ## STDOUT:
165 42
166 hello
167 ## END
168
169
170 #### IFS - http://landley.net/notes.html#05-03-2020
171 case $SH in zsh) exit ;; esac
172
173 IFS=x
174 chicken() { for i in "$@"; do echo =$i=; done;}
175 chicken one abc dxf ghi
176
177 echo ---
178 myfunc() { "$SH" -c 'IFS=x; for i in $@; do echo =$i=; done' blah "$@"; }
179 myfunc one "" two
180
181 ## STDOUT:
182 =one=
183 =abc=
184 =d f=
185 =ghi=
186 ---
187 =one=
188 ==
189 =two=
190 ## END
191
192 ## BUG dash/ash STDOUT:
193 =one=
194 =abc=
195 =d f=
196 =ghi=
197 ---
198 =one=
199 =two=
200 ## END
201
202 ## N-I zsh STDOUT:
203 ## END
204
205 #### IFS=x and '' and unquoted $@ - reduction of case above - copied into spec/word-split
206
207 setopt SH_WORD_SPLIT
208 #set -x
209
210 set -- one "" two
211
212 IFS=x
213
214 argv.py $@
215
216 for i in $@; do
217 echo -$i-
218 done
219
220 ## STDOUT:
221 ['one', '', 'two']
222 -one-
223 --
224 -two-
225 ## END
226
227 ## BUG dash/ash/zsh STDOUT:
228 ['one', 'two']
229 -one-
230 -two-
231 ## END
232
233
234 #### for loop parsing - http://landley.net/notes.html#04-03-2020
235
236 $SH -c '
237 for i
238 in one two three
239 do echo $i;
240 done
241 '
242 echo $?
243
244 $SH -c 'for i; in one two three; do echo $i; done'
245 test $? -ne 0 && echo cannot-parse
246
247 ## STDOUT:
248 one
249 two
250 three
251 0
252 cannot-parse
253 ## END
254
255 #### Parsing $(( ))
256 # http://landley.net/notes.html#15-03-2020
257 $SH -c 'echo $((echo hello))'
258 if test $? -ne 0; then echo fail; fi
259 ## stdout: fail
260
261 #### IFS - http://landley.net/notes.html#15-02-2020 (TODO: osh)
262
263 IFS=x
264 A=xabcxx
265 for i in $A; do echo =$i=; done
266 echo
267
268 unset IFS
269 A=" abc def "
270 for i in ""$A""; do echo =$i=; done
271
272 ## STDOUT:
273 ==
274 =abc=
275 ==
276
277 ==
278 =abc=
279 =def=
280 ==
281 ## END
282 ## BUG zsh status: 1
283 ## BUG zsh stdout-json: ""
284
285 #### IFS 2 - copied into spec/word-split
286 # this one appears different between osh and bash
287 A=" abc def "; for i in ""x""$A""; do echo =$i=; done
288
289 ## STDOUT:
290 =x=
291 =abc=
292 =def=
293 ==
294 ## END
295 ## BUG zsh status: 1
296 ## BUG zsh stdout-json: ""
297
298 #### IFS 3
299 IFS=x; X="onextwoxxthree"; y=$X; echo $y
300 ## STDOUT:
301 one two three
302 ## END
303 ## BUG zsh STDOUT:
304 onextwoxxthree
305 ## END
306
307 #### IFS 4
308
309 setopt SH_WORD_SPLIT
310
311 IFS=x
312
313 func1() {
314 echo /$*/
315 for i in $*; do echo -$i-; done
316 }
317 func1 "" ""
318
319 echo
320
321 func2() {
322 echo /"$*"/
323 for i in =$*=; do echo -$i-; done
324 }
325 func2 "" ""
326
327 ## STDOUT:
328 / /
329
330 /x/
331 -=-
332 -=-
333 ## END
334 ## BUG bash STDOUT:
335 / /
336 --
337
338 /x/
339 -=-
340 -=-
341 ## END
342 ## BUG yash/zsh STDOUT:
343 / /
344 --
345 --
346
347 /x/
348 -=-
349 -=-
350 ## END
351
352 #### IFS 5
353 cc() { for i in $*; do echo -$i-; done;}; cc "" "" "" "" ""
354 cc() { echo =$1$2=;}; cc "" ""
355 ## STDOUT:
356 ==
357 ## END
358 ## BUG yash STDOUT:
359 --
360 --
361 --
362 --
363 --
364 ==
365 ## END
366 ## BUG zsh status: 1
367 ## BUG zsh stdout-json: ""
368
369 #### Can't parse extra }
370
371 $SH -c 'for i in a"$@"b;do echo =$i=;done;}' 123 456 789
372 ## status: 2
373 ## OK mksh/zsh status: 1
374 ## STDOUT:
375 ## END
376
377 #### Command Sub Syntax Error
378 # http://landley.net/notes.html#28-01-2020
379
380 echo $(if true)
381 echo $?
382 echo $(false)
383 echo $?
384
385 ## status: 2
386 ## stdout-json: ""
387
388 ## OK mksh/zsh status: 1
389
390
391 #### Pipeline - http://landley.net/notes-2019.html#16-12-2019
392 echo hello | { read i; echo $i;} | { read i; echo $i;} | cat
393 echo hello | while read i; do echo -=$i=- | sed s/=/@/g ; done | cat
394 ## STDOUT:
395 hello
396 -@hello@-
397 ## END
398