| 1 | # Test set flags, sh flags.
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| 2 | 
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| 3 | ## compare_shells: bash dash mksh
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| 4 | ## oils_failures_allowed: 3
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| 5 | ## tags: interactive
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| 6 | 
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| 7 | #### $- with -c
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| 8 | # dash's behavior seems most sensible here?
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| 9 | $SH -o nounset -c 'echo $-'
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| 10 | ## stdout: u
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| 11 | ## OK bash stdout: huBc
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| 12 | ## OK mksh stdout: uhc
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| 13 | ## status: 0
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| 14 | 
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| 15 | #### $- with pipefail
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| 16 | set -o pipefail -o nounset
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| 17 | echo $-
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| 18 | ## stdout: u
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| 19 | ## status: 0
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| 20 | ## OK bash stdout: huBs
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| 21 | ## OK mksh stdout: ush
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| 22 | ## N-I dash stdout-json: ""
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| 23 | ## N-I dash status: 2
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| 24 | 
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| 25 | #### $- and more options
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| 26 | set -efuC
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| 27 | o=$-
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| 28 | [[ $o == *e* ]]; echo yes
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| 29 | [[ $o == *f* ]]; echo yes
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| 30 | [[ $o == *u* ]]; echo yes
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| 31 | [[ $o == *C* ]]; echo yes
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| 32 | ## STDOUT:
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| 33 | yes
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| 34 | yes
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| 35 | yes
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| 36 | yes
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| 37 | ## END
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| 38 | ## N-I dash stdout-json: ""
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| 39 | ## N-I dash status: 127
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| 40 | 
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| 41 | #### $- with interactive shell
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| 42 | $SH -c 'echo $-' | grep i || echo FALSE
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| 43 | $SH -i -c 'echo $-' | grep -q i && echo TRUE
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| 44 | ## STDOUT:
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| 45 | FALSE
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| 46 | TRUE
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| 47 | ## END
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| 48 | #### pass short options like sh -e
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| 49 | $SH -e -c 'false; echo status=$?'
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| 50 | ## stdout-json: ""
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| 51 | ## status: 1
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| 52 | 
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| 53 | #### pass long options like sh -o errexit
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| 54 | $SH -o errexit -c 'false; echo status=$?'
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| 55 | ## stdout-json: ""
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| 56 | ## status: 1
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| 57 | 
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| 58 | #### pass shopt options like sh -O nullglob
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| 59 | $SH +O nullglob -c 'echo foo *.nonexistent bar'
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| 60 | $SH -O nullglob -c 'echo foo *.nonexistent bar'
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| 61 | ## STDOUT:
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| 62 | foo *.nonexistent bar
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| 63 | foo bar
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| 64 | ## END
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| 65 | ## N-I dash/mksh stdout-json: ""
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| 66 | ## N-I dash status: 2
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| 67 | ## N-I mksh status: 1
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| 68 | 
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| 69 | #### can continue after unknown option
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| 70 | # dash and mksh make this a fatal error no matter what.
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| 71 | set -o errexit
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| 72 | set -o STRICT || true # unknown option
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| 73 | echo hello
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| 74 | ## stdout: hello
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| 75 | ## status: 0
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| 76 | ## BUG dash/mksh stdout-json: ""
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| 77 | ## BUG dash status: 2
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| 78 | ## BUG mksh status: 1
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| 79 | 
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| 80 | #### set with both options and argv
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| 81 | set -o errexit a b c
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| 82 | echo "$@"
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| 83 | false
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| 84 | echo done
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| 85 | ## stdout: a b c
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| 86 | ## status: 1
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| 87 | 
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| 88 | #### set -o vi/emacs
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| 89 | set -o vi
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| 90 | echo $?
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| 91 | set -o emacs
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| 92 | echo $?
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| 93 | ## STDOUT:
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| 94 | 0
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| 95 | 0
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| 96 | ## END
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| 97 | 
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| 98 | #### vi and emacs are mutually exclusive
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| 99 | show() {
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| 100 |   shopt -o -p | egrep 'emacs$|vi$'
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| 101 |   echo ___
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| 102 | };
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| 103 | show
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| 104 | 
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| 105 | set -o emacs
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| 106 | show
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| 107 | 
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| 108 | set -o vi
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| 109 | show
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| 110 | 
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| 111 | ## STDOUT:
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| 112 | set +o emacs
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| 113 | set +o vi
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| 114 | ___
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| 115 | set -o emacs
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| 116 | set +o vi
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| 117 | ___
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| 118 | set +o emacs
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| 119 | set -o vi
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| 120 | ___
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| 121 | ## END
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| 122 | ## N-I dash/mksh STDOUT:
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| 123 | ___
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| 124 | ___
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| 125 | ___
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| 126 | ## END
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| 127 | 
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| 128 | #### interactive shell starts with emacs mode on
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| 129 | case $SH in (dash) exit ;; esac
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| 130 | case $SH in (bash|*osh) flag='--rcfile /dev/null' ;; esac
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| 131 | 
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| 132 | code='test -o emacs; echo $?; test -o vi; echo $?'
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| 133 | 
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| 134 | echo non-interactive
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| 135 | $SH $flag -c "$code"
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| 136 | 
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| 137 | echo interactive
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| 138 | $SH $flag -i -c "$code"
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| 139 | 
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| 140 | ## STDOUT:
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| 141 | non-interactive
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| 142 | 1
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| 143 | 1
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| 144 | interactive
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| 145 | 0
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| 146 | 1
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| 147 | ## END
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| 148 | ## OK mksh STDOUT:
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| 149 | non-interactive
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| 150 | 0
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| 151 | 1
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| 152 | interactive
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| 153 | 0
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| 154 | 1
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| 155 | ## END
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| 156 | ## N-I dash stdout-json: ""
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| 157 | 
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| 158 | #### nounset
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| 159 | echo "[$unset]"
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| 160 | set -o nounset
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| 161 | echo "[$unset]"
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| 162 | echo end  # never reached
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| 163 | ## stdout: []
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| 164 | ## status: 1
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| 165 | ## OK dash status: 2
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| 166 | 
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| 167 | #### -u is nounset
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| 168 | echo "[$unset]"
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| 169 | set -u
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| 170 | echo "[$unset]"
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| 171 | echo end  # never reached
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| 172 | ## stdout: []
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| 173 | ## status: 1
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| 174 | ## OK dash status: 2
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| 175 | 
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| 176 | #### nounset with "$@"
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| 177 | set a b c
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| 178 | set -u  # shouldn't touch argv
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| 179 | echo "$@"
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| 180 | ## stdout: a b c
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| 181 | 
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| 182 | #### set -u -- clears argv
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| 183 | set a b c
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| 184 | set -u -- # shouldn't touch argv
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| 185 | echo "$@"
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| 186 | ## stdout: 
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| 187 | 
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| 188 | #### set -u -- x y z
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| 189 | set a b c
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| 190 | set -u -- x y z
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| 191 | echo "$@"
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| 192 | ## stdout: x y z
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| 193 | 
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| 194 | #### reset option with long flag
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| 195 | set -o errexit
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| 196 | set +o errexit
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| 197 | echo "[$unset]"
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| 198 | ## stdout: []
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| 199 | ## status: 0
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| 200 | 
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| 201 | #### reset option with short flag
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| 202 | set -u 
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| 203 | set +u
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| 204 | echo "[$unset]"
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| 205 | ## stdout: []
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| 206 | ## status: 0
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| 207 | 
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| 208 | #### set -eu (flag parsing)
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| 209 | set -eu 
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| 210 | echo "[$unset]"
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| 211 | echo status=$?
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| 212 | ## stdout-json: ""
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| 213 | ## status: 1
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| 214 | ## OK dash status: 2
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| 215 | 
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| 216 | #### -n for no execution (useful with --ast-output)
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| 217 | # NOTE: set +n doesn't work because nothing is executed!
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| 218 | echo 1
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| 219 | set -n
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| 220 | echo 2
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| 221 | set +n
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| 222 | echo 3
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| 223 | # osh doesn't work because it only checks -n in bin/oil.py?
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| 224 | ## STDOUT:
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| 225 | 1
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| 226 | ## END
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| 227 | ## status: 0
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| 228 | 
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| 229 | #### pipefail
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| 230 | # NOTE: the sleeps are because osh can fail non-deterministically because of a
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| 231 | # bug.  Same problem as PIPESTATUS.
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| 232 | { sleep 0.01; exit 9; } | { sleep 0.02; exit 2; } | { sleep 0.03; }
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| 233 | echo $?
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| 234 | set -o pipefail
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| 235 | { sleep 0.01; exit 9; } | { sleep 0.02; exit 2; } | { sleep 0.03; }
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| 236 | echo $?
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| 237 | ## STDOUT:
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| 238 | 0
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| 239 | 2
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| 240 | ## END
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| 241 | ## status: 0
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| 242 | ## N-I dash STDOUT:
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| 243 | 0
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| 244 | ## END
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| 245 | ## N-I dash status: 2
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| 246 | 
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| 247 | #### shopt -p -o prints 'set' options
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| 248 | shopt -po nounset
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| 249 | set -o nounset
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| 250 | shopt -po nounset
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| 251 | ## STDOUT: 
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| 252 | set +o nounset
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| 253 | set -o nounset
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| 254 | ## END
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| 255 | ## N-I dash/mksh stdout-json: ""
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| 256 | ## N-I dash/mksh status: 127
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| 257 | 
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| 258 | #### shopt -p prints 'shopt' options
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| 259 | shopt -p nullglob
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| 260 | shopt -s nullglob
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| 261 | shopt -p nullglob
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| 262 | ## STDOUT:
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| 263 | shopt -u nullglob
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| 264 | shopt -s nullglob
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| 265 | ## END
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| 266 | ## N-I dash/mksh stdout-json: ""
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| 267 | ## N-I dash/mksh status: 127
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| 268 | 
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| 269 | #### shopt with no flags prints options
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| 270 | cd $TMP
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| 271 | 
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| 272 | # print specific options.  OSH does it in a different format.
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| 273 | shopt nullglob failglob > one.txt
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| 274 | wc -l one.txt
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| 275 | grep -o nullglob one.txt
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| 276 | grep -o failglob one.txt
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| 277 | 
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| 278 | # print all options
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| 279 | shopt | grep nullglob | wc -l
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| 280 | ## STDOUT:
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| 281 | 2 one.txt
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| 282 | nullglob
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| 283 | failglob
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| 284 | 1
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| 285 | ## END
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| 286 | ## N-I dash/mksh STDOUT:
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| 287 | 0 one.txt
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| 288 | 0
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| 289 | ## END
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| 290 | 
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| 291 | #### noclobber off
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| 292 | set -o errexit
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| 293 | echo foo > $TMP/can-clobber
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| 294 | set +C
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| 295 | echo foo > $TMP/can-clobber
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| 296 | set +o noclobber
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| 297 | echo foo > $TMP/can-clobber
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| 298 | cat $TMP/can-clobber
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| 299 | ## stdout: foo
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| 300 | 
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| 301 | #### noclobber on
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| 302 | # Not implemented yet.
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| 303 | rm $TMP/no-clobber
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| 304 | set -C
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| 305 | echo foo > $TMP/no-clobber
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| 306 | echo $?
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| 307 | echo foo > $TMP/no-clobber
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| 308 | echo $?
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| 309 | ## stdout-json: "0\n1\n"
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| 310 | ## OK dash stdout-json: "0\n2\n"
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| 311 | 
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| 312 | #### SHELLOPTS is updated when options are changed
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| 313 | echo $SHELLOPTS | grep -q xtrace
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| 314 | echo $?
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| 315 | set -x
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| 316 | echo $SHELLOPTS | grep -q xtrace
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| 317 | echo $?
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| 318 | set +x
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| 319 | echo $SHELLOPTS | grep -q xtrace
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| 320 | echo $?
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| 321 | ## STDOUT:
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| 322 | 1
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| 323 | 0
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| 324 | 1
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| 325 | ## END
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| 326 | ## N-I dash/mksh STDOUT:
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| 327 | 1
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| 328 | 1
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| 329 | 1
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| 330 | ## END
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| 331 | 
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| 332 | #### SHELLOPTS is readonly
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| 333 | SHELLOPTS=x
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| 334 | echo status=$?
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| 335 | ## stdout: status=1
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| 336 | ## N-I dash/mksh stdout: status=0
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| 337 | 
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| 338 | # Setting a readonly variable in osh is a hard failure.
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| 339 | ## OK osh status: 1
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| 340 | ## OK osh stdout-json: ""
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| 341 | 
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| 342 | #### SHELLOPTS and BASHOPTS are set
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| 343 | 
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| 344 | # 2024-06 - tickled by Samuel testing Gentoo
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| 345 | 
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| 346 | # bash: bracexpand:hashall etc.
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| 347 | 
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| 348 | echo shellopts ${SHELLOPTS:?} > /dev/null
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| 349 | echo bashopts ${BASHOPTS:?} > /dev/null
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| 350 | 
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| 351 | ## STDOUT:
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| 352 | ## END
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| 353 | 
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| 354 | ## N-I dash status: 2
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| 355 | ## N-I mksh status: 1
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| 356 | 
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| 357 | 
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| 358 | #### set - -
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| 359 | set a b
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| 360 | echo "$@"
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| 361 | set - a b
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| 362 | echo "$@"
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| 363 | set -- a b
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| 364 | echo "$@"
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| 365 | set - -
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| 366 | echo "$@"
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| 367 | set - +
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| 368 | echo "$@"
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| 369 | set + -
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| 370 | echo "$@"
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| 371 | set -- --
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| 372 | echo "$@"
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| 373 | 
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| 374 | # note: zsh is different, and yash is totally different
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| 375 | ## STDOUT:
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| 376 | a b
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| 377 | a b
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| 378 | a b
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| 379 | -
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| 380 | +
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| 381 | +
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| 382 | --
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| 383 | ## END
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| 384 | ## OK osh/yash STDOUT:
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| 385 | a b
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| 386 | - a b
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| 387 | a b
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| 388 | - -
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| 389 | - +
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| 390 | + -
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| 391 | --
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| 392 | ## END
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| 393 | ## BUG mksh STDOUT:
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| 394 | a b
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| 395 | a b
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| 396 | a b
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| 397 | -
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| 398 | +
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| 399 | -
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| 400 | --
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| 401 | ## END
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| 402 | ## BUG zsh STDOUT:
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| 403 | a b
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| 404 | a b
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| 405 | a b
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| 406 | 
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| 407 | +
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| 408 | 
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| 409 | --
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| 410 | ## END
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| 411 | 
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| 412 | #### set -o lists options
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| 413 | # NOTE: osh doesn't use the same format yet.
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| 414 | set -o | grep -o noexec
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| 415 | ## STDOUT:
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| 416 | noexec
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| 417 | ## END
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| 418 | 
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| 419 | #### set without args lists variables
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| 420 | __GLOBAL=g
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| 421 | f() {
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| 422 |   local __mylocal=L
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| 423 |   local __OTHERLOCAL=L
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| 424 |   __GLOBAL=mutated
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| 425 |   set | grep '^__'
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| 426 | }
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| 427 | g() {
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| 428 |   local __var_in_parent_scope=D
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| 429 |   f
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| 430 | }
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| 431 | g
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| 432 | ## status: 0
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| 433 | ## STDOUT:
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| 434 | __GLOBAL=mutated
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| 435 | __OTHERLOCAL=L
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| 436 | __mylocal=L
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| 437 | __var_in_parent_scope=D
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| 438 | ## END
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| 439 | ## OK mksh STDOUT:
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| 440 | __GLOBAL=mutated
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| 441 | __var_in_parent_scope=D
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| 442 | __OTHERLOCAL=L
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| 443 | __mylocal=L
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| 444 | ## END
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| 445 | ## OK dash STDOUT:
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| 446 | __GLOBAL='mutated'
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| 447 | __OTHERLOCAL='L'
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| 448 | __mylocal='L'
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| 449 | __var_in_parent_scope='D'
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| 450 | ## END
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| 451 | 
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| 452 | #### 'set' and 'eval' round trip
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| 453 | 
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| 454 | # NOTE: not testing arrays and associative arrays!
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| 455 | _space='[ ]'
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| 456 | _whitespace=$'[\t\r\n]'
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| 457 | _sq="'single quotes'"
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| 458 | _backslash_dq="\\ \""
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| 459 | _unicode=$'[\u03bc]'
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| 460 | 
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| 461 | # Save the variables
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| 462 | varfile=$TMP/vars-$(basename $SH).txt
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| 463 | 
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| 464 | set | grep '^_' > "$varfile"
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| 465 | 
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| 466 | # Unset variables
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| 467 | unset _space _whitespace _sq _backslash_dq _unicode
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| 468 | echo [ $_space $_whitespace $_sq $_backslash_dq $_unicode ]
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| 469 | 
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| 470 | # Restore them
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| 471 | 
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| 472 | . $varfile
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| 473 | echo "Code saved to $varfile" 1>&2  # for debugging
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| 474 | 
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| 475 | test "$_space" = '[ ]' && echo OK
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| 476 | test "$_whitespace" = $'[\t\r\n]' && echo OK
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| 477 | test "$_sq" = "'single quotes'" && echo OK
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| 478 | test "$_backslash_dq" = "\\ \"" && echo OK
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| 479 | test "$_unicode" = $'[\u03bc]' && echo OK
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| 480 | 
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| 481 | ## STDOUT:
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| 482 | [ ]
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| 483 | OK
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| 484 | OK
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| 485 | OK
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| 486 | OK
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| 487 | OK
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| 488 | ## END
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| 489 | 
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| 490 | #### set without args and array variables (not in OSH)
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| 491 | declare -a __array
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| 492 | __array=(1 2 '3 4')
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| 493 | set | grep '^__'
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| 494 | ## STDOUT:
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| 495 | __array=([0]="1" [1]="2" [2]="3 4")
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| 496 | ## END
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| 497 | ## OK mksh STDOUT:
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| 498 | __array[0]=1
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| 499 | __array[1]=2
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| 500 | __array[2]='3 4'
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| 501 | ## N-I dash stdout-json: ""
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| 502 | ## N-I dash status: 2
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| 503 | ## N-I osh stdout-json: ""
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| 504 | ## N-I osh status: 1
 | 
| 505 | 
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| 506 | #### set without args and assoc array variables (not in OSH)
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| 507 | typeset -A __assoc
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| 508 | __assoc['k e y']='v a l'
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| 509 | __assoc[a]=b
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| 510 | set | grep '^__'
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| 511 | ## STDOUT:
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| 512 | __assoc=([a]="b" ["k e y"]="v a l" )
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| 513 | ## END
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| 514 | ## N-I mksh stdout-json: ""
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| 515 | ## N-I mksh status: 1
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| 516 | ## N-I dash stdout-json: ""
 | 
| 517 | ## N-I dash status: 1
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| 518 | ## N-I osh stdout-json: ""
 | 
| 519 | ## N-I osh status: 1
 | 
| 520 | 
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| 521 | #### shopt -q
 | 
| 522 | shopt -q nullglob
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| 523 | echo nullglob=$?
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| 524 | 
 | 
| 525 | # set it
 | 
| 526 | shopt -s nullglob
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| 527 | 
 | 
| 528 | shopt -q nullglob
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| 529 | echo nullglob=$?
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| 530 | 
 | 
| 531 | shopt -q nullglob failglob
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| 532 | echo nullglob,failglob=$?
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| 533 | 
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| 534 | # set it
 | 
| 535 | shopt -s failglob
 | 
| 536 | shopt -q nullglob failglob
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| 537 | echo nullglob,failglob=$?
 | 
| 538 | 
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| 539 | ## STDOUT:
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| 540 | nullglob=1
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| 541 | nullglob=0
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| 542 | nullglob,failglob=1
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| 543 | nullglob,failglob=0
 | 
| 544 | ## END
 | 
| 545 | ## N-I dash/mksh STDOUT:
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| 546 | nullglob=127
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| 547 | nullglob=127
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| 548 | nullglob,failglob=127
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| 549 | nullglob,failglob=127
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| 550 | ## END
 | 
| 551 | 
 | 
| 552 | #### shopt -q invalid
 | 
| 553 | shopt -q invalidZZ
 | 
| 554 | echo invalidZZ=$?
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| 555 | ## STDOUT:
 | 
| 556 | invalidZZ=2
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| 557 | ## END
 | 
| 558 | ## OK bash STDOUT:
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| 559 | invalidZZ=1
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| 560 | ## END
 | 
| 561 | ## N-I dash/mksh STDOUT:
 | 
| 562 | invalidZZ=127
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| 563 | ## END
 | 
| 564 | 
 | 
| 565 | #### shopt -s strict:all
 | 
| 566 | n=2
 | 
| 567 | 
 | 
| 568 | show-strict() {
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| 569 |   shopt -p | grep 'strict_' | head -n $n
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| 570 |   echo -
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| 571 | }
 | 
| 572 | 
 | 
| 573 | show-strict
 | 
| 574 | shopt -s strict:all
 | 
| 575 | show-strict
 | 
| 576 | shopt -u strict_arith
 | 
| 577 | show-strict
 | 
| 578 | ## STDOUT:
 | 
| 579 | shopt -u strict_argv
 | 
| 580 | shopt -u strict_arith
 | 
| 581 | -
 | 
| 582 | shopt -s strict_argv
 | 
| 583 | shopt -s strict_arith
 | 
| 584 | -
 | 
| 585 | shopt -s strict_argv
 | 
| 586 | shopt -u strict_arith
 | 
| 587 | -
 | 
| 588 | ## END
 | 
| 589 | ## N-I dash status: 2
 | 
| 590 | ## N-I dash stdout-json: ""
 | 
| 591 | ## N-I bash/mksh STDOUT:
 | 
| 592 | -
 | 
| 593 | -
 | 
| 594 | -
 | 
| 595 | ## END
 | 
| 596 | 
 | 
| 597 | #### shopt allows for backward compatibility like bash
 | 
| 598 | 
 | 
| 599 | # doesn't have to be on, but just for testing
 | 
| 600 | set -o errexit
 | 
| 601 | 
 | 
| 602 | shopt -p nullglob || true  # bash returns 1 here?  Like -q.
 | 
| 603 | 
 | 
| 604 | # This should set nullglob, and return 1, which can be ignored
 | 
| 605 | shopt -s nullglob strict_OPTION_NOT_YET_IMPLEMENTED 2>/dev/null || true
 | 
| 606 | echo status=$?
 | 
| 607 | 
 | 
| 608 | shopt -p nullglob || true
 | 
| 609 | 
 | 
| 610 | ## STDOUT:
 | 
| 611 | shopt -u nullglob
 | 
| 612 | status=0
 | 
| 613 | shopt -s nullglob
 | 
| 614 | ## END
 | 
| 615 | ## N-I dash/mksh STDOUT:
 | 
| 616 | status=0
 | 
| 617 | ## END
 | 
| 618 | ## N-I dash/mksh status: 0
 | 
| 619 | 
 | 
| 620 | #### shopt -p validates option names
 | 
| 621 | shopt -p nullglob invalid failglob
 | 
| 622 | echo status=$?
 | 
| 623 | # same thing as -p, slightly different format in bash
 | 
| 624 | shopt nullglob invalid failglob > $TMP/out.txt
 | 
| 625 | status=$?
 | 
| 626 | sed --regexp-extended 's/\s+/ /' $TMP/out.txt  # make it easier to assert
 | 
| 627 | echo status=$status
 | 
| 628 | ## STDOUT:
 | 
| 629 | status=2
 | 
| 630 | status=2
 | 
| 631 | ## END
 | 
| 632 | ## OK bash STDOUT:
 | 
| 633 | shopt -u nullglob
 | 
| 634 | shopt -u failglob
 | 
| 635 | status=1
 | 
| 636 | nullglob off
 | 
| 637 | failglob off
 | 
| 638 | status=1
 | 
| 639 | ## END
 | 
| 640 | ## N-I dash/mksh STDOUT:
 | 
| 641 | status=127
 | 
| 642 | status=127
 | 
| 643 | ## END
 | 
| 644 | 
 | 
| 645 | #### shopt -p -o validates option names
 | 
| 646 | shopt -p -o errexit invalid nounset
 | 
| 647 | echo status=$?
 | 
| 648 | ## STDOUT:
 | 
| 649 | set +o errexit
 | 
| 650 | status=2
 | 
| 651 | ## END
 | 
| 652 | ## OK bash STDOUT:
 | 
| 653 | set +o errexit
 | 
| 654 | set +o nounset
 | 
| 655 | status=1
 | 
| 656 | ## END
 | 
| 657 | ## N-I dash/mksh STDOUT:
 | 
| 658 | status=127
 | 
| 659 | ## END
 | 
| 660 | 
 | 
| 661 | #### stubbed out bash options
 | 
| 662 | for name in foo autocd cdable_vars checkwinsize; do
 | 
| 663 |   shopt -s $name
 | 
| 664 |   echo $?
 | 
| 665 | done
 | 
| 666 | ## STDOUT:
 | 
| 667 | 2
 | 
| 668 | 0
 | 
| 669 | 0
 | 
| 670 | 0
 | 
| 671 | ## END
 | 
| 672 | ## OK bash STDOUT:
 | 
| 673 | 1
 | 
| 674 | 0
 | 
| 675 | 0
 | 
| 676 | 0
 | 
| 677 | ## END
 | 
| 678 | ## OK dash/mksh STDOUT:
 | 
| 679 | 127
 | 
| 680 | 127
 | 
| 681 | 127
 | 
| 682 | 127
 | 
| 683 | ## END
 | 
| 684 | 
 | 
| 685 | #### shopt -s nounset works in Oil, not in bash
 | 
| 686 | case $SH in
 | 
| 687 |   *dash|*mksh)
 | 
| 688 |     echo N-I
 | 
| 689 |     exit
 | 
| 690 |     ;;
 | 
| 691 | esac
 | 
| 692 | shopt -s nounset
 | 
| 693 | echo status=$?
 | 
| 694 | 
 | 
| 695 | # get rid of extra space in bash output
 | 
| 696 | set -o | grep nounset | sed 's/[ \t]\+/ /g'
 | 
| 697 | 
 | 
| 698 | ## STDOUT:
 | 
| 699 | status=0
 | 
| 700 | set -o nounset
 | 
| 701 | ## END
 | 
| 702 | ## OK bash STDOUT:
 | 
| 703 | status=1
 | 
| 704 | nounset off
 | 
| 705 | # END
 | 
| 706 | ## N-I dash/mksh STDOUT:
 | 
| 707 | N-I
 | 
| 708 | ## END
 | 
| 709 | 
 | 
| 710 | #### no-ops not in shopt -p output
 | 
| 711 | shopt -p | grep xpg
 | 
| 712 | echo --
 | 
| 713 | ## STDOUT:
 | 
| 714 | --
 | 
| 715 | ## END
 | 
| 716 | ## OK bash STDOUT:
 | 
| 717 | shopt -u xpg_echo
 | 
| 718 | --
 | 
| 719 | ## END
 | 
| 720 | 
 | 
| 721 | 
 |