| 1 | ## compare_shells: dash bash mksh zsh
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| 2 |
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| 3 | # Miscellaneous tests for the command language.
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| 4 |
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| 5 | #### Command block
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| 6 | PATH=/bin
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| 7 |
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| 8 | { which ls; }
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| 9 | ## stdout: /bin/ls
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| 10 |
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| 11 | #### Permission denied
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| 12 | touch $TMP/text-file
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| 13 | $TMP/text-file
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| 14 | ## status: 126
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| 15 |
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| 16 | #### Not a dir
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| 17 | $TMP/not-a-dir/text-file
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| 18 | ## status: 127
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| 19 |
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| 20 | #### Name too long
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| 21 | ./0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789
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| 22 | ## status: 127
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| 23 | ## OK dash status: 2
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| 24 | ## OK bash status: 126
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| 25 |
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| 26 | #### External programs don't have _OVM in environment
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| 27 | # bug fix for leakage
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| 28 | env | grep _OVM
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| 29 | echo status=$?
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| 30 | ## stdout: status=1
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| 31 |
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| 32 | #### File with no shebang is executed
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| 33 | # most shells execute /bin/sh; bash may execute itself
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| 34 | echo 'echo hi' > $TMP/no-shebang
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| 35 | chmod +x $TMP/no-shebang
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| 36 | $SH -c '$TMP/no-shebang'
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| 37 | ## stdout: hi
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| 38 | ## status: 0
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| 39 |
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| 40 | #### File with relative path and no shebang is executed
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| 41 | cd $TMP
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| 42 | echo 'echo hi' > no-shebang
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| 43 | chmod +x no-shebang
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| 44 | "$SH" -c './no-shebang'
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| 45 | ## stdout: hi
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| 46 | ## status: 0
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| 47 |
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| 48 | #### File in relative subdirectory and no shebang is executed
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| 49 | cd $TMP
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| 50 | mkdir -p test-no-shebang
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| 51 | echo 'echo hi' > test-no-shebang/script
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| 52 | chmod +x test-no-shebang/script
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| 53 | "$SH" -c 'test-no-shebang/script'
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| 54 | ## stdout: hi
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| 55 | ## status: 0
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| 56 |
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| 57 | #### $PATH lookup
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| 58 | cd $TMP
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| 59 | mkdir -p one two
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| 60 | echo 'echo one' > one/mycmd
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| 61 | echo 'echo two' > two/mycmd
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| 62 | chmod +x one/mycmd two/mycmd
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| 63 |
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| 64 | PATH='one:two'
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| 65 | mycmd
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| 66 | ## STDOUT:
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| 67 | one
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| 68 | ## END
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| 69 |
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| 70 | #### filling $PATH cache, then insert the same command earlier in cache
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| 71 | cd $TMP
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| 72 | PATH="one:two:$PATH"
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| 73 | mkdir -p one two
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| 74 | rm -f one/* two/*
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| 75 | echo 'echo two' > two/mycmd
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| 76 | chmod +x two/mycmd
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| 77 | mycmd
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| 78 |
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| 79 | # Insert earlier in the path
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| 80 | echo 'echo one' > one/mycmd
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| 81 | chmod +x one/mycmd
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| 82 | mycmd # still runs the cached 'two'
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| 83 |
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| 84 | # clear the cache
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| 85 | hash -r
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| 86 | mycmd # now it runs the new 'one'
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| 87 |
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| 88 | ## STDOUT:
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| 89 | two
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| 90 | two
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| 91 | one
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| 92 | ## END
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| 93 |
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| 94 | # zsh doesn't do caching!
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| 95 | ## OK zsh STDOUT:
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| 96 | two
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| 97 | one
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| 98 | one
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| 99 | ## END
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| 100 |
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| 101 | #### filling $PATH cache, then deleting command
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| 102 | cd $TMP
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| 103 | PATH="one:two:$PATH"
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| 104 | mkdir -p one two
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| 105 | rm -f one/mycmd two/mycmd
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| 106 |
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| 107 | echo 'echo two' > two/mycmd
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| 108 | chmod +x two/mycmd
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| 109 | mycmd
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| 110 | echo status=$?
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| 111 |
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| 112 | # Insert earlier in the path
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| 113 | echo 'echo one' > one/mycmd
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| 114 | chmod +x one/mycmd
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| 115 | rm two/mycmd
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| 116 | mycmd # still runs the cached 'two'
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| 117 | echo status=$?
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| 118 |
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| 119 | ## STDOUT:
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| 120 | two
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| 121 | status=0
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| 122 | status=127
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| 123 | ## END
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| 124 |
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| 125 | # mksh and zsh correctly searches for the executable again!
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| 126 | ## OK zsh/mksh STDOUT:
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| 127 | two
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| 128 | status=0
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| 129 | one
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| 130 | status=0
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| 131 | ## END
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| 132 |
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| 133 | #### Non-executable on $PATH
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| 134 |
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| 135 | # shells differ in whether they actually execve('one/cmd') and get EPERM
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| 136 |
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| 137 | mkdir -p one two
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| 138 | PATH="one:two:$PATH"
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| 139 |
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| 140 | rm -f one/mycmd two/mycmd
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| 141 | echo 'echo one' > one/mycmd
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| 142 | echo 'echo two' > two/mycmd
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| 143 |
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| 144 | # only make the second one executable
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| 145 | chmod +x two/mycmd
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| 146 | mycmd
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| 147 | echo status=$?
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| 148 |
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| 149 | ## STDOUT:
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| 150 | two
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| 151 | status=0
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| 152 | ## END
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| 153 |
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| 154 | #### hash without args prints the cache
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| 155 | whoami >/dev/null
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| 156 | hash
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| 157 | echo status=$?
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| 158 | ## STDOUT:
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| 159 | /usr/bin/whoami
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| 160 | status=0
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| 161 | ## END
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| 162 |
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| 163 | # bash uses a weird table. Although we could use TSV2.
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| 164 | ## OK bash stdout-json: "hits\tcommand\n 1\t/usr/bin/whoami\nstatus=0\n"
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| 165 |
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| 166 | ## OK mksh/zsh STDOUT:
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| 167 | whoami=/usr/bin/whoami
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| 168 | status=0
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| 169 | ## END
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| 170 |
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| 171 | #### hash with args
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| 172 | hash whoami
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| 173 | echo status=$?
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| 174 | hash | grep -o /whoami # prints it twice
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| 175 | hash _nonexistent_
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| 176 | echo status=$?
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| 177 | ## STDOUT:
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| 178 | status=0
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| 179 | /whoami
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| 180 | status=1
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| 181 | ## END
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| 182 |
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| 183 | # mksh doesn't fail
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| 184 | ## BUG mksh STDOUT:
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| 185 | status=0
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| 186 | /whoami
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| 187 | status=0
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| 188 | ## END
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| 189 |
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| 190 | #### hash -r doesn't allow additional args
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| 191 | hash -r whoami >/dev/null # avoid weird output with mksh
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| 192 | echo status=$?
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| 193 | ## stdout: status=1
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| 194 | ## OK osh stdout: status=2
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| 195 | ## BUG dash/bash stdout: status=0
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