| 1 | ## compare_shells: bash dash mksh zsh
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| 2 | ## oils_failures_allowed: 0
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| 3 |
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| 4 | #### can continue after unknown option
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| 5 | #
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| 6 | # TODO: this is the posix special builtin logic?
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| 7 | # dash and mksh make this a fatal error no matter what.
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| 8 |
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| 9 | set -o errexit
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| 10 | set -o STRICT || true # unknown option
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| 11 | echo hello
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| 12 | ## stdout: hello
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| 13 | ## status: 0
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| 14 | ## BUG dash/mksh/zsh stdout-json: ""
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| 15 | ## BUG dash status: 2
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| 16 | ## BUG mksh/zsh status: 1
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| 17 |
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| 18 | #### set with both options and argv
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| 19 | set -o errexit a b c
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| 20 | echo "$@"
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| 21 | false
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| 22 | echo done
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| 23 | ## stdout: a b c
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| 24 | ## status: 1
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| 25 |
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| 26 | #### nounset with "$@"
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| 27 | set a b c
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| 28 | set -u # shouldn't touch argv
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| 29 | echo "$@"
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| 30 | ## stdout: a b c
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| 31 |
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| 32 | #### set -u -- clears argv
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| 33 | set a b c
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| 34 | set -u -- # shouldn't touch argv
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| 35 | echo "$@"
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| 36 | ## stdout:
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| 37 |
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| 38 | #### set -u -- x y z
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| 39 | set a b c
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| 40 | set -u -- x y z
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| 41 | echo "$@"
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| 42 | ## stdout: x y z
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| 43 |
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| 44 | #### set -u error in eval should exit when non-interactive
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| 45 | set -u
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| 46 | test_function() {
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| 47 | x=$1
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| 48 | }
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| 49 |
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| 50 | echo "before"
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| 51 | eval test_function
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| 52 | # bash spec says that set -u failures should exit the shell
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| 53 | # posix spec says that eval shall read and execute a command by the current shell, so the
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| 54 | # running shell should exit too
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| 55 | echo "after"
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| 56 | ## status: 1
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| 57 | ## OK ash/dash status: 2
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| 58 | ## BUG mksh/zsh status: 0
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| 59 | ## STDOUT:
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| 60 | before
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| 61 | ## END
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| 62 | ## BUG zsh/mksh STDOUT:
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| 63 | before
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| 64 | after
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| 65 | ## END
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| 66 |
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| 67 | #### set -u nested evals
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| 68 | set -u
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| 69 | test_function_2() {
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| 70 | x=$blarg
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| 71 | }
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| 72 | test_function() {
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| 73 | eval "test_function_2"
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| 74 | }
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| 75 |
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| 76 | echo "before"
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| 77 | eval test_function
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| 78 | echo "after"
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| 79 | ## status: 1
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| 80 | ## OK ash/dash status: 2
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| 81 | ## BUG mksh/zsh status: 0
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| 82 | ## STDOUT:
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| 83 | before
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| 84 | ## END
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| 85 | ## BUG zsh/mksh STDOUT:
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| 86 | before
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| 87 | after
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| 88 | ## END
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| 89 |
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| 90 | #### set -u no eval
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| 91 | set -u
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| 92 |
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| 93 | echo "before"
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| 94 | x=$blarg
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| 95 | echo "after"
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| 96 | ## status: 1
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| 97 | ## OK ash/dash status: 2
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| 98 | ## STDOUT:
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| 99 | before
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| 100 | ## END
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| 101 |
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| 102 | #### reset option with long flag
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| 103 | set -o errexit
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| 104 | set +o errexit
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| 105 | echo "[$unset]"
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| 106 | ## stdout: []
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| 107 | ## status: 0
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| 108 |
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| 109 | #### reset option with short flag
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| 110 | set -u
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| 111 | set +u
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| 112 | echo "[$unset]"
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| 113 | ## stdout: []
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| 114 | ## status: 0
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| 115 |
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| 116 | #### set -eu (flag parsing)
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| 117 | set -eu
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| 118 | echo "[$unset]"
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| 119 | echo status=$?
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| 120 | ## stdout-json: ""
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| 121 | ## status: 1
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| 122 | ## OK dash status: 2
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| 123 |
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| 124 | #### set -o lists options
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| 125 | # NOTE: osh doesn't use the same format yet.
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| 126 | set -o | grep -o noexec
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| 127 | ## STDOUT:
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| 128 | noexec
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| 129 | ## END
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| 130 |
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| 131 | #### 'set' and 'eval' round trip
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| 132 |
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| 133 | # NOTE: not testing arrays and associative arrays!
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| 134 | _space='[ ]'
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| 135 | _whitespace=$'[\t\r\n]'
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| 136 | _sq="'single quotes'"
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| 137 | _backslash_dq="\\ \""
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| 138 | _unicode=$'[\u03bc]'
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| 139 |
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| 140 | # Save the variables
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| 141 | varfile=$TMP/vars-$(basename $SH).txt
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| 142 |
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| 143 | set | grep '^_' > "$varfile"
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| 144 |
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| 145 | # Unset variables
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| 146 | unset _space _whitespace _sq _backslash_dq _unicode
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| 147 | echo [ $_space $_whitespace $_sq $_backslash_dq $_unicode ]
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| 148 |
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| 149 | # Restore them
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| 150 |
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| 151 | . $varfile
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| 152 | echo "Code saved to $varfile" 1>&2 # for debugging
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| 153 |
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| 154 | test "$_space" = '[ ]' && echo OK
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| 155 | test "$_whitespace" = $'[\t\r\n]' && echo OK
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| 156 | test "$_sq" = "'single quotes'" && echo OK
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| 157 | test "$_backslash_dq" = "\\ \"" && echo OK
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| 158 | test "$_unicode" = $'[\u03bc]' && echo OK
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| 159 |
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| 160 | ## STDOUT:
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| 161 | [ ]
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| 162 | OK
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| 163 | OK
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| 164 | OK
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| 165 | OK
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| 166 | OK
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| 167 | ## END
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| 168 |
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| 169 | ## BUG zsh status: 1
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| 170 | ## BUG zsh STDOUT:
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| 171 | [ ]
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| 172 | ## END
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| 173 |
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| 174 | #### set - - and so forth
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| 175 | set a b
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| 176 | echo "$@"
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| 177 |
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| 178 | set - a b
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| 179 | echo "$@"
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| 180 |
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| 181 | set -- a b
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| 182 | echo "$@"
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| 183 |
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| 184 | set - -
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| 185 | echo "$@"
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| 186 |
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| 187 | set -- --
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| 188 | echo "$@"
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| 189 |
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| 190 | # note: zsh is different, and yash is totally different
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| 191 | ## STDOUT:
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| 192 | a b
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| 193 | a b
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| 194 | a b
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| 195 | -
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| 196 | --
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| 197 | ## END
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| 198 | ## N-I yash STDOUT:
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| 199 | a b
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| 200 | - a b
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| 201 | a b
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| 202 | - -
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| 203 | --
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| 204 | ## END
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| 205 | ## BUG zsh STDOUT:
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| 206 | a b
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| 207 | a b
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| 208 | a b
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| 209 |
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| 210 | --
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| 211 | ## END
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| 212 |
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| 213 | #### set - leading single dash is ignored, turns off xtrace verbose (#2364)
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| 214 |
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| 215 | show_options() {
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| 216 | case $- in
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| 217 | *v*) echo verbose-on ;;
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| 218 | esac
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| 219 | case $- in
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| 220 | *x*) echo xtrace-on ;;
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| 221 | esac
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| 222 | }
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| 223 |
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| 224 | set -x -v
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| 225 | show_options
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| 226 | echo
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| 227 |
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| 228 | set - a b c
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| 229 | echo "$@"
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| 230 | show_options
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| 231 | echo
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| 232 |
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| 233 | # dash that's not leading is not special
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| 234 | set x - y z
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| 235 | echo "$@"
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| 236 |
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| 237 | ## STDOUT:
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| 238 | verbose-on
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| 239 | xtrace-on
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| 240 |
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| 241 | a b c
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| 242 |
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| 243 | x - y z
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| 244 | ## END
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| 245 |
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| 246 | ## BUG zsh STDOUT:
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| 247 | verbose-on
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| 248 | xtrace-on
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| 249 |
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| 250 | a b c
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| 251 | verbose-on
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| 252 | xtrace-on
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| 253 |
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| 254 | x - y z
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| 255 | ## END
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| 256 |
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| 257 | #### set - stops option processing like set --
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| 258 | case $SH in zsh) exit ;; esac
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| 259 |
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| 260 | show_options() {
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| 261 | case $- in
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| 262 | *v*) echo verbose-on ;;
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| 263 | esac
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| 264 | case $- in
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| 265 | *x*) echo xtrace-on ;;
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| 266 | esac
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| 267 | }
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| 268 |
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| 269 | set -x - -v
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| 270 |
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| 271 | show_options
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| 272 | echo argv "$@"
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| 273 |
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| 274 | ## STDOUT:
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| 275 | argv -v
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| 276 | ## END
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| 277 |
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| 278 | ## N-I zsh STDOUT:
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| 279 | ## END
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| 280 |
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| 281 | #### A single + is an ignored flag; not an argument
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| 282 | case $SH in zsh) exit ;; esac
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| 283 |
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| 284 | show_options() {
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| 285 | case $- in
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| 286 | *v*) echo verbose-on ;;
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| 287 | esac
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| 288 | case $- in
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| 289 | *x*) echo xtrace-on ;;
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| 290 | esac
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| 291 | }
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| 292 |
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| 293 | set +
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| 294 | echo plus "$@"
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| 295 |
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| 296 | set -x + -v x y
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| 297 | show_options
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| 298 | echo plus "$@"
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| 299 |
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| 300 | ## STDOUT:
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| 301 | plus
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| 302 | verbose-on
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| 303 | xtrace-on
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| 304 | plus x y
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| 305 | ## END
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| 306 |
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| 307 | ## BUG mksh STDOUT:
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| 308 | plus
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| 309 | xtrace-on
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| 310 | plus -v x y
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| 311 | ## END
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| 312 |
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| 313 | ## N-I zsh STDOUT:
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| 314 | ## END
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| 315 |
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| 316 | #### set - + and + -
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| 317 | set - +
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| 318 | echo "$@"
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| 319 |
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| 320 | set + -
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| 321 | echo "$@"
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| 322 |
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| 323 | ## STDOUT:
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| 324 | +
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| 325 | +
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| 326 | ## END
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| 327 |
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| 328 | ## BUG mksh STDOUT:
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| 329 | +
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| 330 | -
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| 331 | ## END
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| 332 |
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| 333 | ## OK zsh/osh STDOUT:
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| 334 | +
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| 335 |
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| 336 | ## END
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| 337 |
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| 338 | #### set -a exports variables
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| 339 | set -a
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| 340 | FOO=bar
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| 341 | BAZ=qux
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| 342 | printenv.py FOO BAZ
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| 343 | ## STDOUT:
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| 344 | bar
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| 345 | qux
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| 346 | ## END
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| 347 |
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| 348 | #### set +a stops exporting
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| 349 | set -a
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| 350 | FOO=exported
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| 351 | set +a
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| 352 | BAR=not_exported
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| 353 | printenv.py FOO BAR
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| 354 | ## STDOUT:
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| 355 | exported
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| 356 | None
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| 357 | ## END
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| 358 |
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| 359 | #### set -o allexport (long form)
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| 360 | set -o allexport
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| 361 | VAR1=value1
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| 362 | set +o allexport
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| 363 | VAR2=value2
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| 364 | printenv.py VAR1 VAR2
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| 365 | ## STDOUT:
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| 366 | value1
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| 367 | None
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| 368 | ## END
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| 369 |
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| 370 | #### variables set before set -a are not exported
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| 371 | BEFORE=before_value
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| 372 | set -a
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| 373 | AFTER=after_value
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| 374 | printenv.py BEFORE AFTER
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| 375 | ## STDOUT:
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| 376 | None
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| 377 | after_value
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| 378 | ## END
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| 379 |
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| 380 | #### set -a exports local variables
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| 381 | set -a
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| 382 | f() {
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| 383 | local ZZZ=zzz
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| 384 | printenv.py ZZZ
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| 385 | }
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| 386 | f
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| 387 | ## STDOUT:
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| 388 | zzz
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| 389 | ## END
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| 390 | ## BUG mksh stdout: None
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| 391 |
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| 392 | #### set -a exports declare variables
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| 393 | set -a
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| 394 | declare ZZZ=zzz
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| 395 | printenv.py ZZZ
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| 396 | ## STDOUT:
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| 397 | zzz
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| 398 | ## END
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| 399 | ## N-I dash/mksh stdout: None
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