1	#!/usr/bin/env bash
2	#
3	# Miscellaneous tests for the command language.
4
5	#### Command block
6	{ which ls; }
7	## stdout: /bin/ls
8
9	#### Permission denied
10	touch $TMP/text-file
11	$TMP/text-file
12	## status: 126
13
14	#### Not a dir
15	$TMP/not-a-dir/text-file
16	## status: 127
17
18	#### Name too long
19	./0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789
20	## status: 127
21	## OK dash status: 2
22	## OK bash status: 126
23
24	#### External programs don't have _OVM in environment
25	# bug fix for leakage
26	env | grep _OVM
27	echo status=$?
28	## stdout: status=1
29
30	#### File with no shebang is executed
31	# most shells execute /bin/sh; bash may execute itself
32	echo 'echo hi' > $TMP/no-shebang
33	chmod +x $TMP/no-shebang
34	$SH -c '$TMP/no-shebang'
35	## stdout: hi
36	## status: 0
37
38	#### File with relative path and no shebang is executed
39	cd $TMP
40	echo 'echo hi' > no-shebang
41	chmod +x no-shebang
42	"$SH" -c './no-shebang'
43	## stdout: hi
44	## status: 0
45
46	#### File in relative subdirectory and no shebang is executed
47	cd $TMP
48	mkdir -p test-no-shebang
49	echo 'echo hi' > test-no-shebang/script
50	chmod +x test-no-shebang/script
51	"$SH" -c 'test-no-shebang/script'
52	## stdout: hi
53	## status: 0
54
55	#### $PATH lookup
56	cd $TMP
57	mkdir -p one two
58	echo 'echo one' > one/mycmd
59	echo 'echo two' > two/mycmd
60	chmod +x one/mycmd two/mycmd
61
62	PATH='one:two'
63	mycmd
64	## STDOUT:
65	one
66	## END
67
68	#### filling $PATH cache, then insert the same command earlier in cache
69	cd $TMP
70	PATH="one:two:$PATH"
71	mkdir -p one two
72	rm -f one/* two/*
73	echo 'echo two' > two/mycmd
74	chmod +x two/mycmd
75	mycmd
76
77	# Insert earlier in the path
78	echo 'echo one' > one/mycmd
79	chmod +x one/mycmd
80	mycmd # still runs the cached 'two'
81
82	# clear the cache
83	hash -r
84	mycmd # now it runs the new 'one'
85
86	## STDOUT:
87	two
88	two
89	one
90	## END
91
92	# zsh doesn't do caching!
93	## OK zsh STDOUT:
94	two
95	one
96	one
97	## END
98
99	#### filling $PATH cache, then deleting command
100	cd $TMP
101	PATH="one:two:$PATH"
102	mkdir -p one two
103	rm -f one/mycmd two/mycmd
104
105	echo 'echo two' > two/mycmd
106	chmod +x two/mycmd
107	mycmd
108	echo status=$?
109
110	# Insert earlier in the path
111	echo 'echo one' > one/mycmd
112	chmod +x one/mycmd
113	rm two/mycmd
114	mycmd # still runs the cached 'two'
115	echo status=$?
116
117	## STDOUT:
118	two
119	status=0
120	status=127
121	## END
122
123	# mksh and zsh correctly searches for the executable again!
124	## OK zsh/mksh STDOUT:
125	two
126	status=0
127	one
128	status=0
129	## END
130
131	#### Non-executable on $PATH
132
133	# shells differ in whether they actually execve('one/cmd') and get EPERM
134
135	cd $TMP
136	PATH="one:two:$PATH"
137	mkdir -p one two
138	rm -f one/mycmd two/mycmd
139
140	echo 'echo one' > one/mycmd
141	echo 'echo two' > two/mycmd
142
143	# only make the second one executable
144	chmod +x two/mycmd
145	mycmd
146	echo status=$?
147	## STDOUT:
148	two
149	status=0
150	## END
151
152	#### hash without args prints the cache
153	whoami >/dev/null
154	hash
155	echo status=$?
156	## STDOUT:
157	/usr/bin/whoami
158	status=0
159	## END
160
161	# bash uses a weird table. Although we could use TSV2.
162	## OK bash stdout-json: "hits\tcommand\n 1\t/usr/bin/whoami\nstatus=0\n"
163
164	## OK mksh/zsh STDOUT:
165	whoami=/usr/bin/whoami
166	status=0
167	## END
168
169	#### hash with args
170	hash whoami
171	echo status=$?
172	hash | grep -o /whoami # prints it twice
173	hash _nonexistent_
174	echo status=$?
175	## STDOUT:
176	status=0
177	/whoami
178	status=1
179	## END
180
181	# mksh doesn't fail
182	## BUG mksh STDOUT:
183	status=0
184	/whoami
185	status=0
186	## END
187
188	#### hash -r doesn't allow additional args
189	hash -r whoami >/dev/null # avoid weird output with mksh
190	echo status=$?
191	## stdout: status=1
192	## OK osh stdout: status=2
193	## BUG dash/bash stdout: status=0