| 1 | ## oils_failures_allowed: 2
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| 2 | ## compare_shells: bash dash mksh
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| 3 |
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| 4 | #### >&
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| 5 | echo hi 1>&2
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| 6 | ## stderr: hi
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| 7 |
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| 8 | #### <&
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| 9 | # Is there a simpler test case for this?
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| 10 | echo foo > $TMP/lessamp.txt
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| 11 | exec 6< $TMP/lessamp.txt
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| 12 | read line <&6
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| 13 | echo "[$line]"
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| 14 | ## stdout: [foo]
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| 15 |
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| 16 | #### Leading redirect
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| 17 | echo hello >$TMP/hello.txt # temporary fix
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| 18 | <$TMP/hello.txt cat
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| 19 | ## stdout: hello
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| 20 |
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| 21 | #### Nonexistent file
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| 22 | cat <$TMP/nonexistent.txt
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| 23 | echo status=$?
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| 24 | ## stdout: status=1
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| 25 | ## OK dash stdout: status=2
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| 26 |
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| 27 | #### Redirect in command sub
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| 28 | FOO=$(echo foo 1>&2)
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| 29 | echo $FOO
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| 30 | ## stdout:
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| 31 | ## stderr: foo
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| 32 |
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| 33 | #### Redirect in assignment
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| 34 | # dash captures stderr to a file here, which seems correct. Bash doesn't and
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| 35 | # just lets it go to actual stderr.
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| 36 | # For now we agree with dash/mksh, since it involves fewer special cases in the
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| 37 | # code.
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| 38 |
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| 39 | FOO=$(echo foo 1>&2) 2>$TMP/no-command.txt
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| 40 | echo FILE=
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| 41 | cat $TMP/no-command.txt
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| 42 | echo "FOO=$FOO"
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| 43 | ## STDOUT:
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| 44 | FILE=
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| 45 | foo
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| 46 | FOO=
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| 47 | ## END
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| 48 | ## BUG bash STDOUT:
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| 49 | FILE=
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| 50 | FOO=
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| 51 | ## END
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| 52 |
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| 53 | #### Redirect in function body.
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| 54 | fun() { echo hi; } 1>&2
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| 55 | fun
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| 56 | ## STDOUT:
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| 57 | ## END
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| 58 | ## STDERR:
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| 59 | hi
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| 60 | ## END
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| 61 |
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| 62 | #### Redirect in function body is evaluated multiple times
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| 63 | i=0
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| 64 | fun() { echo "file $i"; } 1> "$TMP/file$((i++))"
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| 65 | fun
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| 66 | fun
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| 67 | echo i=$i
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| 68 | echo __
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| 69 | cat $TMP/file0
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| 70 | echo __
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| 71 | cat $TMP/file1
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| 72 | ## STDOUT:
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| 73 | i=2
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| 74 | __
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| 75 | file 1
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| 76 | __
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| 77 | file 2
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| 78 | ## END
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| 79 | ## N-I dash stdout-json: ""
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| 80 | ## N-I dash status: 2
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| 81 |
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| 82 | #### Redirect in function body AND function call
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| 83 | fun() { echo hi; } 1>&2
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| 84 | fun 2>&1
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| 85 | ## stdout-json: "hi\n"
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| 86 | ## stderr-json: ""
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| 87 |
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| 88 | #### Descriptor redirect with spaces
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| 89 | # Hm this seems like a failure of lookahead! The second thing should look to a
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| 90 | # file-like thing.
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| 91 | # I think this is a posix issue.
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| 92 | # tag: posix-issue
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| 93 | echo one 1>&2
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| 94 | echo two 1 >&2
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| 95 | echo three 1>& 2
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| 96 | ## stderr-json: "one\ntwo 1\nthree\n"
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| 97 |
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| 98 | #### Filename redirect with spaces
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| 99 | # This time 1 *is* a descriptor, not a word. If you add a space between 1 and
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| 100 | # >, it doesn't work.
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| 101 | echo two 1> $TMP/file-redir1.txt
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| 102 | cat $TMP/file-redir1.txt
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| 103 | ## stdout: two
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| 104 |
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| 105 | #### Quoted filename redirect with spaces
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| 106 | # POSIX makes node of this
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| 107 | echo two \1 > $TMP/file-redir2.txt
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| 108 | cat $TMP/file-redir2.txt
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| 109 | ## stdout: two 1
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| 110 |
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| 111 | #### Descriptor redirect with filename
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| 112 | # bash/mksh treat this like a filename, not a descriptor.
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| 113 | # dash aborts.
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| 114 | echo one 1>&$TMP/nonexistent-filename__
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| 115 | echo "status=$?"
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| 116 | ## stdout: status=1
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| 117 | ## BUG bash stdout: status=0
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| 118 | ## OK dash stdout-json: ""
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| 119 | ## OK dash status: 2
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| 120 |
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| 121 | #### redirect for loop
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| 122 | for i in $(seq 3)
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| 123 | do
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| 124 | echo $i
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| 125 | done > $TMP/redirect-for-loop.txt
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| 126 | cat $TMP/redirect-for-loop.txt
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| 127 | ## stdout-json: "1\n2\n3\n"
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| 128 |
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| 129 | #### redirect subshell
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| 130 | ( echo foo ) 1>&2
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| 131 | ## stderr: foo
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| 132 | ## stdout-json: ""
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| 133 |
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| 134 | #### Prefix redirect for loop -- not allowed
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| 135 | >$TMP/redirect2.txt for i in $(seq 3)
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| 136 | do
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| 137 | echo $i
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| 138 | done
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| 139 | cat $TMP/redirect2.txt
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| 140 | ## status: 2
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| 141 | ## OK mksh status: 1
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| 142 |
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| 143 | #### Brace group redirect
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| 144 | # Suffix works, but prefix does NOT work.
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| 145 | # That comes from '| compound_command redirect_list' in the grammar!
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| 146 | { echo block-redirect; } > $TMP/br.txt
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| 147 | cat $TMP/br.txt | wc -c
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| 148 | ## stdout: 15
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| 149 |
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| 150 | #### Redirect echo to stderr, and then redirect all of stdout somewhere.
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| 151 | { echo foo 1>&2; echo 012345789; } > $TMP/block-stdout.txt
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| 152 | cat $TMP/block-stdout.txt | wc -c
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| 153 | ## stderr: foo
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| 154 | ## stdout: 10
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| 155 |
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| 156 | #### Redirect in the middle of two assignments
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| 157 | FOO=foo >$TMP/out.txt BAR=bar printenv.py FOO BAR
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| 158 | tac $TMP/out.txt
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| 159 | ## stdout-json: "bar\nfoo\n"
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| 160 |
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| 161 | #### Redirect in the middle of a command
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| 162 | f=$TMP/out
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| 163 | echo -n 1 2 '3 ' > $f
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| 164 | echo -n 4 5 >> $f '6 '
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| 165 | echo -n 7 >> $f 8 '9 '
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| 166 | echo -n >> $f 1 2 '3 '
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| 167 | echo >> $f -n 4 5 '6 '
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| 168 | cat $f
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| 169 | ## stdout-json: "1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 "
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| 170 |
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| 171 | #### Named file descriptor
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| 172 | exec {myfd}> $TMP/named-fd.txt
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| 173 | echo named-fd-contents >& $myfd
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| 174 | cat $TMP/named-fd.txt
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| 175 | ## stdout: named-fd-contents
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| 176 | ## status: 0
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| 177 | ## N-I dash/mksh stdout-json: ""
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| 178 | ## N-I dash/mksh status: 127
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| 179 |
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| 180 | #### Double digit fd (20> file)
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| 181 | exec 20> "$TMP/double-digit-fd.txt"
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| 182 | echo hello20 >&20
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| 183 | cat "$TMP/double-digit-fd.txt"
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| 184 | ## stdout: hello20
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| 185 | ## BUG dash stdout-json: ""
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| 186 | ## BUG dash status: 127
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| 187 |
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| 188 | #### : 9> fdleak (OSH regression)
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| 189 | true 9> "$TMP/fd.txt"
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| 190 | ( echo world >&9 )
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| 191 | cat "$TMP/fd.txt"
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| 192 | ## stdout-json: ""
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| 193 |
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| 194 | #### : 3>&3 (OSH regression)
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| 195 |
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| 196 | # mksh started being flaky on the continuous build and during release. We
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| 197 | # don't care! Related to issue #330.
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| 198 | case $SH in (mksh) exit ;; esac
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| 199 |
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| 200 | : 3>&3
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| 201 | echo hello
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| 202 | ## stdout: hello
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| 203 | ## BUG mksh stdout-json: ""
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| 204 | ## BUG mksh status: 0
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| 205 |
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| 206 | #### : 3>&3-
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| 207 | : 3>&3-
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| 208 | echo hello
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| 209 | ## stdout: hello
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| 210 | ## N-I dash/mksh stdout-json: ""
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| 211 | ## N-I mksh status: 1
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| 212 | ## N-I dash status: 2
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| 213 |
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| 214 | #### 3>&- << EOF (OSH regression: fail to restore fds)
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| 215 | exec 3> "$TMP/fd.txt"
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| 216 | echo hello 3>&- << EOF
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| 217 | EOF
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| 218 | echo world >&3
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| 219 | exec 3>&- # close
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| 220 | cat "$TMP/fd.txt"
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| 221 | ## STDOUT:
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| 222 | hello
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| 223 | world
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| 224 | ## END
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| 225 |
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| 226 | #### Open file on descriptor 3 and write to it many times
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| 227 |
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| 228 | # different than case below because 3 is the likely first FD of open()
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| 229 |
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| 230 | exec 3> "$TMP/fd3.txt"
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| 231 | echo hello >&3
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| 232 | echo world >&3
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| 233 | exec 3>&- # close
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| 234 | cat "$TMP/fd3.txt"
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| 235 | ## STDOUT:
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| 236 | hello
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| 237 | world
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| 238 | ## END
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| 239 |
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| 240 | #### Open file on descriptor 4 and write to it many times
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| 241 |
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| 242 | # different than the case above because because 4 isn't the likely first FD
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| 243 |
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| 244 | exec 4> "$TMP/fd4.txt"
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| 245 | echo hello >&4
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| 246 | echo world >&4
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| 247 | exec 4>&- # close
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| 248 | cat "$TMP/fd4.txt"
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| 249 | ## STDOUT:
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| 250 | hello
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| 251 | world
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| 252 | ## END
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| 253 |
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| 254 | #### Redirect function stdout
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| 255 | f() { echo one; echo two; }
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| 256 | f > $TMP/redirect-func.txt
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| 257 | cat $TMP/redirect-func.txt
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| 258 | ## stdout-json: "one\ntwo\n"
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| 259 |
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| 260 | #### Nested function stdout redirect
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| 261 | # Shows that a stack is necessary.
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| 262 | inner() {
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| 263 | echo i1
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| 264 | echo i2
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| 265 | }
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| 266 | outer() {
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| 267 | echo o1
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| 268 | inner > $TMP/inner.txt
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| 269 | echo o2
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| 270 | }
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| 271 | outer > $TMP/outer.txt
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| 272 | cat $TMP/inner.txt
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| 273 | echo --
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| 274 | cat $TMP/outer.txt
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| 275 | ## stdout-json: "i1\ni2\n--\no1\no2\n"
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| 276 |
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| 277 | #### Redirect to empty string
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| 278 | f=''
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| 279 | echo s > "$f"
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| 280 | echo "result=$?"
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| 281 | set -o errexit
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| 282 | echo s > "$f"
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| 283 | echo DONE
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| 284 | ## stdout: result=1
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| 285 | ## status: 1
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| 286 | ## OK dash stdout: result=2
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| 287 | ## OK dash status: 2
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| 288 |
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| 289 | #### Redirect to file descriptor that's not open
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| 290 | # Notes:
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| 291 | # - 7/2021: descriptor 7 seems to work on all CI systems. The process state
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| 292 | # isn't clean, but we could probably close it in OSH?
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| 293 | # - dash doesn't allow file descriptors greater than 9. (This is a good
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| 294 | # thing, because the bash chapter in AOSA book mentions that juggling user
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| 295 | # vs. system file descriptors is a huge pain.)
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| 296 | # - But somehow running in parallel under spec-runner.sh changes whether
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| 297 | # descriptor 3 is open. e.g. 'echo hi 1>&3'. Possibly because of
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| 298 | # /usr/bin/time. The _tmp/spec/*.task.txt file gets corrupted!
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| 299 | # - Oh this is because I use time --output-file. That opens descriptor 3. And
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| 300 | # then time forks the shell script. The file descriptor table is inherited.
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| 301 | # - You actually have to set the file descriptor to something. What do
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| 302 | # configure and debootstrap too?
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| 303 |
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| 304 | opened=$(ls /proc/$$/fd)
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| 305 | if echo "$opened" | egrep '^7$'; then
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| 306 | echo "FD 7 shouldn't be open"
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| 307 | echo "OPENED:"
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| 308 | echo "$opened"
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| 309 | fi
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| 310 |
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| 311 | echo hi 1>&7
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| 312 | ## stdout-json: ""
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| 313 | ## status: 1
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| 314 | ## OK dash status: 2
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| 315 |
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| 316 | #### Open descriptor with exec
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| 317 | # What is the point of this? ./configure scripts and debootstrap use it.
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| 318 | exec 3>&1
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| 319 | echo hi 1>&3
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| 320 | ## stdout: hi
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| 321 | ## status: 0
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| 322 |
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| 323 | #### Open multiple descriptors with exec
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| 324 | # What is the point of this? ./configure scripts and debootstrap use it.
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| 325 | exec 3>&1
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| 326 | exec 4>&1
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| 327 | echo three 1>&3
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| 328 | echo four 1>&4
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| 329 | ## stdout-json: "three\nfour\n"
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| 330 | ## status: 0
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| 331 |
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| 332 | #### >| to clobber
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| 333 | echo XX >| $TMP/c.txt
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| 334 |
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| 335 | set -o noclobber
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| 336 |
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| 337 | echo YY > $TMP/c.txt # not clobber
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| 338 | echo status=$?
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| 339 |
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| 340 | cat $TMP/c.txt
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| 341 | echo ZZ >| $TMP/c.txt
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| 342 |
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| 343 | cat $TMP/c.txt
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| 344 | ## STDOUT:
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| 345 | status=1
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| 346 | XX
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| 347 | ZZ
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| 348 | ## END
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| 349 | ## OK dash STDOUT:
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| 350 | status=2
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| 351 | XX
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| 352 | ZZ
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| 353 | ## END
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| 354 |
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| 355 | #### &> redirects stdout and stderr
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| 356 | tmp="$(basename $SH)-$$.txt" # unique name for shell and test case
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| 357 | #echo $tmp
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| 358 |
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| 359 | stdout_stderr.py &> $tmp
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| 360 |
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| 361 | # order is indeterminate
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| 362 | grep STDOUT $tmp
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| 363 | grep STDERR $tmp
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| 364 |
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| 365 | ## STDOUT:
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| 366 | STDOUT
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| 367 | STDERR
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| 368 | ## END
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| 369 | ## N-I dash stdout: STDOUT
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| 370 | ## N-I dash stderr: STDERR
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| 371 | ## N-I dash status: 1
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| 372 |
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| 373 | #### >&word redirects stdout and stderr when word is not a number or -
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| 374 |
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| 375 | # dash, mksh don't implement this bash behaviour.
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| 376 | case $SH in (dash|mksh) exit 1 ;; esac
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| 377 |
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| 378 | tmp="$(basename $SH)-$$.txt" # unique name for shell and test case
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| 379 |
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| 380 | stdout_stderr.py >&$tmp
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| 381 |
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| 382 | # order is indeterminate
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| 383 | grep STDOUT $tmp
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| 384 | grep STDERR $tmp
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| 385 |
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| 386 | ## STDOUT:
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| 387 | STDOUT
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| 388 | STDERR
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| 389 | ## END
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| 390 | ## N-I dash/mksh status: 1
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| 391 | ## N-I dash/mksh stdout-json: ""
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| 392 |
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| 393 | #### 1>&- to close file descriptor
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| 394 | exec 5> "$TMP/f.txt"
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| 395 | echo hello >&5
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| 396 | exec 5>&-
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| 397 | echo world >&5
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| 398 | cat "$TMP/f.txt"
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| 399 | ## stdout-json: "hello\n"
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| 400 |
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| 401 | #### 1>&2- to move file descriptor
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| 402 | exec 5> "$TMP/f.txt"
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| 403 | echo hello5 >&5
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| 404 | exec 6>&5-
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| 405 | echo world5 >&5
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| 406 | echo world6 >&6
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| 407 | exec 6>&-
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| 408 | cat "$TMP/f.txt"
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| 409 | ## stdout-json: "hello5\nworld6\n"
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| 410 | ## N-I dash status: 2
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| 411 | ## N-I dash stdout-json: ""
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| 412 | ## N-I mksh status: 1
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| 413 | ## N-I mksh stdout-json: ""
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| 414 |
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| 415 | #### 1>&2- (Bash bug: fail to restore closed fd)
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| 416 |
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| 417 | # 7/2021: descriptor 8 is open on Github Actions, so use descriptor 6 instead
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| 418 |
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| 419 | # Fix for CI systems where process state isn't clean: Close descriptors 6 and 7.
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| 420 | exec 6>&- 7>&-
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| 421 |
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| 422 | opened=$(ls /proc/$$/fd)
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| 423 | if echo "$opened" | egrep '^7$'; then
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| 424 | echo "FD 7 shouldn't be open"
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| 425 | echo "OPENED:"
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| 426 | echo "$opened"
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| 427 | fi
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| 428 | if echo "$opened" | egrep '^6$'; then
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| 429 | echo "FD 6 shouldn't be open"
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| 430 | echo "OPENED:"
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| 431 | echo "$opened"
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| 432 | fi
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| 433 |
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| 434 | exec 7> "$TMP/f.txt"
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| 435 | : 6>&7 7>&-
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| 436 | echo hello >&7
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| 437 | : 6>&7-
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| 438 | echo world >&7
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| 439 | exec 7>&-
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| 440 | cat "$TMP/f.txt"
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| 441 |
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| 442 | ## status: 1
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| 443 | ## stdout-json: ""
|
| 444 |
|
| 445 | ## OK dash status: 2
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| 446 |
|
| 447 | ## BUG bash status: 0
|
| 448 | ## BUG bash stdout: hello
|
| 449 |
|
| 450 | #### <> for read/write
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| 451 | echo first >$TMP/rw.txt
|
| 452 | exec 8<>$TMP/rw.txt
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| 453 | read line <&8
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| 454 | echo line=$line
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| 455 | echo second 1>&8
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| 456 | echo CONTENTS
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| 457 | cat $TMP/rw.txt
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| 458 | ## stdout-json: "line=first\nCONTENTS\nfirst\nsecond\n"
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| 459 |
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| 460 | #### <> for read/write named pipes
|
| 461 | rm -f "$TMP/f.pipe"
|
| 462 | mkfifo "$TMP/f.pipe"
|
| 463 | exec 8<> "$TMP/f.pipe"
|
| 464 | echo first >&8
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| 465 | echo second >&8
|
| 466 | read line1 <&8
|
| 467 | read line2 <&8
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| 468 | exec 8<&-
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| 469 | echo line1=$line1 line2=$line2
|
| 470 | ## stdout: line1=first line2=second
|
| 471 |
|
| 472 | #### &>> appends stdout and stderr
|
| 473 |
|
| 474 | # Fix for flaky tests: dash behaves non-deterministically under load! It
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| 475 | # doesn't implement the behavior anyway so I don't care why.
|
| 476 | case $SH in
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| 477 | *dash)
|
| 478 | exit 1
|
| 479 | ;;
|
| 480 | esac
|
| 481 |
|
| 482 | echo "ok" > $TMP/f.txt
|
| 483 | stdout_stderr.py &>> $TMP/f.txt
|
| 484 | grep ok $TMP/f.txt >/dev/null && echo 'ok'
|
| 485 | grep STDOUT $TMP/f.txt >/dev/null && echo 'ok'
|
| 486 | grep STDERR $TMP/f.txt >/dev/null && echo 'ok'
|
| 487 | ## STDOUT:
|
| 488 | ok
|
| 489 | ok
|
| 490 | ok
|
| 491 | ## END
|
| 492 | ## N-I dash stdout-json: ""
|
| 493 | ## N-I dash status: 1
|
| 494 |
|
| 495 | #### exec redirect then various builtins
|
| 496 | exec 5>$TMP/log.txt
|
| 497 | echo hi >&5
|
| 498 | set -o >&5
|
| 499 | echo done
|
| 500 | ## STDOUT:
|
| 501 | done
|
| 502 | ## END
|
| 503 |
|
| 504 | #### >$file touches a file
|
| 505 | rm -f myfile
|
| 506 | test -f myfile
|
| 507 | echo status=$?
|
| 508 | >myfile
|
| 509 | test -f myfile
|
| 510 | echo status=$?
|
| 511 | ## STDOUT:
|
| 512 | status=1
|
| 513 | status=0
|
| 514 | ## END
|
| 515 | # regression for OSH
|
| 516 | ## stderr-json: ""
|
| 517 |
|
| 518 | #### $(< $file) yields the contents of the file
|
| 519 |
|
| 520 | echo FOO > myfile
|
| 521 | foo=$(< myfile)
|
| 522 | echo $foo
|
| 523 | ## STDOUT:
|
| 524 | FOO
|
| 525 | ## END
|
| 526 | ## N-I dash/ash/yash stdout-json: "\n"
|
| 527 |
|
| 528 | #### $(< file) with more statements
|
| 529 |
|
| 530 | # note that it doesn't do this without a command sub!
|
| 531 | # It's apparently a special case in bash, mksh, and zsh?
|
| 532 | foo=$(echo begin; < myfile)
|
| 533 | echo $foo
|
| 534 | echo ---
|
| 535 |
|
| 536 | foo=$(< myfile; echo end)
|
| 537 | echo $foo
|
| 538 | echo ---
|
| 539 |
|
| 540 | foo=$(< myfile; <myfile)
|
| 541 | echo $foo
|
| 542 | echo ---
|
| 543 |
|
| 544 | ## STDOUT:
|
| 545 | begin
|
| 546 | ---
|
| 547 | end
|
| 548 | ---
|
| 549 |
|
| 550 | ---
|
| 551 | ## END
|
| 552 | # weird, zsh behaves differently
|
| 553 | ## OK zsh STDOUT:
|
| 554 | begin
|
| 555 | FOO
|
| 556 | ---
|
| 557 | FOO
|
| 558 | end
|
| 559 | ---
|
| 560 | FOO
|
| 561 | FOO
|
| 562 | ---
|
| 563 | ## END
|
| 564 |
|
| 565 |
|
| 566 | #### < file in pipeline and subshell doesn't work
|
| 567 | echo FOO > file2
|
| 568 |
|
| 569 | # This only happens in command subs, which is weird
|
| 570 | < file2 | tr A-Z a-z
|
| 571 | ( < file2 )
|
| 572 | echo end
|
| 573 | ## STDOUT:
|
| 574 | end
|
| 575 | ## END
|
| 576 |
|
| 577 | #### 2>&1 with no command
|
| 578 | ( exit 42 ) # status is reset after this
|
| 579 | echo status=$?
|
| 580 | 2>&1
|
| 581 | echo status=$?
|
| 582 | ## STDOUT:
|
| 583 | status=42
|
| 584 | status=0
|
| 585 | ## END
|
| 586 | ## stderr-json: ""
|
| 587 |
|
| 588 | #### 2&>1 (is it a redirect or is it like a&>1)
|
| 589 | 2&>1
|
| 590 | echo status=$?
|
| 591 | ## STDOUT:
|
| 592 | status=127
|
| 593 | ## END
|
| 594 | ## OK mksh/dash STDOUT:
|
| 595 | status=0
|
| 596 | ## END
|
| 597 |
|
| 598 | #### can't mention big file descriptor
|
| 599 | echo hi 9>&1
|
| 600 | # trivia: 23 is the max descriptor for mksh
|
| 601 | #echo hi 24>&1
|
| 602 | echo hi 99>&1
|
| 603 | echo hi 100>&1
|
| 604 | ## OK osh STDOUT:
|
| 605 | hi
|
| 606 | hi
|
| 607 | hi 100
|
| 608 | ## END
|
| 609 | ## STDOUT:
|
| 610 | hi
|
| 611 | hi 99
|
| 612 | hi 100
|
| 613 | ## END
|
| 614 | ## BUG bash STDOUT:
|
| 615 | hi
|
| 616 | hi
|
| 617 | hi
|
| 618 | ## END
|
| 619 |
|
| 620 | #### : >/dev/null 2> / (OSH regression: fail to pop fd frame)
|
| 621 | # oil 0.8.pre4 fails to restore fds after redirection failure. In the
|
| 622 | # following case, the fd frame remains after the redirection failure
|
| 623 | # "2> /" so that the effect of redirection ">/dev/null" remains after
|
| 624 | # the completion of the command.
|
| 625 | : >/dev/null 2> /
|
| 626 | echo hello
|
| 627 | ## stdout: hello
|
| 628 | ## OK dash stdout-json: ""
|
| 629 | ## OK dash status: 2
|
| 630 | ## OK mksh stdout-json: ""
|
| 631 | ## OK mksh status: 1
|
| 632 | # dash/mksh terminates the execution of script on the redirection.
|
| 633 |
|
| 634 | #### echo foo >&100 (OSH regression: does not fail with invalid fd 100)
|
| 635 | # oil 0.8.pre4 does not fail with non-existent fd 100.
|
| 636 | fd=100
|
| 637 | echo foo >&$fd
|
| 638 | ## stdout-json: ""
|
| 639 | ## status: 1
|
| 640 | ## OK dash status: 2
|
| 641 |
|
| 642 | #### echo foo >&N where N is first unused fd
|
| 643 | # 1. prepare default fd for internal uses
|
| 644 | minfd=10
|
| 645 | case ${SH##*/} in
|
| 646 | (mksh) minfd=24 ;;
|
| 647 | (osh) minfd=100 ;;
|
| 648 | esac
|
| 649 |
|
| 650 | # 2. prepare first unused fd
|
| 651 | fd=$minfd
|
| 652 | is-fd-open() { : >&$1; }
|
| 653 | while is-fd-open "$fd"; do
|
| 654 | : $((fd+=1))
|
| 655 |
|
| 656 | # prevent infinite loop for broken oils-for-unix
|
| 657 | if test $fd -gt 1000; then
|
| 658 | break
|
| 659 | fi
|
| 660 | done
|
| 661 |
|
| 662 | # 3. test
|
| 663 | echo foo >&$fd
|
| 664 | ## stdout-json: ""
|
| 665 | ## status: 1
|
| 666 | ## OK dash status: 2
|
| 667 |
|
| 668 | #### exec {fd}>&- (OSH regression: fails to close fd)
|
| 669 | # mksh, dash do not implement {fd} redirections.
|
| 670 | case $SH in (mksh|dash) exit 1 ;; esac
|
| 671 | # oil 0.8.pre4 fails to close fd by {fd}&-.
|
| 672 | exec {fd}>file1
|
| 673 | echo foo >&$fd
|
| 674 | exec {fd}>&-
|
| 675 | echo bar >&$fd
|
| 676 | cat file1
|
| 677 | ## stdout: foo
|
| 678 | ## N-I mksh/dash stdout-json: ""
|
| 679 | ## N-I mksh/dash status: 1
|