| 1 | ## oils_failures_allowed: 3
|
| 2 | ## compare_shells: dash bash-4.4 mksh zsh
|
| 3 |
|
| 4 |
|
| 5 | # NOTE:
|
| 6 | # - $! is tested in background.test.sh
|
| 7 | # - $- is tested in sh-options
|
| 8 | #
|
| 9 | # TODO: It would be nice to make a table, like:
|
| 10 | #
|
| 11 | # $$ $BASHPID $PPID $SHLVL $BASH_SUBSHELL
|
| 12 | # X
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| 13 | # (Subshell, Command Sub, Pipeline, Spawn $0)
|
| 14 | #
|
| 15 | # And see whether the variable changed.
|
| 16 |
|
| 17 | #### $PWD is set
|
| 18 | # Just test that it has a slash for now.
|
| 19 | echo $PWD | grep /
|
| 20 | ## status: 0
|
| 21 |
|
| 22 | #### $PWD is not only set, but exported
|
| 23 | env | grep PWD
|
| 24 | ## status: 0
|
| 25 | ## BUG mksh status: 1
|
| 26 |
|
| 27 | #### $PATH is set if unset at startup
|
| 28 |
|
| 29 | # WORKAROUND for Python version of bin/osh -- we can't run bin/oils_for_unix.py
|
| 30 | # because it a shebang #!/usr/bin/env python2
|
| 31 | # This test is still useful for the C++ oils-for-unix.
|
| 32 |
|
| 33 | case $SH in
|
| 34 | */bin/osh)
|
| 35 | echo yes
|
| 36 | echo yes
|
| 37 | exit
|
| 38 | ;;
|
| 39 | esac
|
| 40 |
|
| 41 | # Get absolute path before changing PATH
|
| 42 | sh=$(which $SH)
|
| 43 |
|
| 44 | old_path=$PATH
|
| 45 | unset PATH
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| 46 |
|
| 47 | $sh -c 'echo $PATH' > path.txt
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| 48 |
|
| 49 | PATH=$old_path
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| 50 |
|
| 51 | # looks like PATH=/usr/bin:/bin for mksh, but more complicated for others
|
| 52 | # cat path.txt
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| 53 |
|
| 54 | # should contain /usr/bin
|
| 55 | if egrep -q '(^|:)/usr/bin($|:)' path.txt; then
|
| 56 | echo yes
|
| 57 | fi
|
| 58 |
|
| 59 | # should contain /bin
|
| 60 | if egrep -q '(^|:)/bin($|:)' path.txt ; then
|
| 61 | echo yes
|
| 62 | fi
|
| 63 |
|
| 64 | ## STDOUT:
|
| 65 | yes
|
| 66 | yes
|
| 67 | ## END
|
| 68 |
|
| 69 | #### $HOME is NOT set
|
| 70 | case $SH in *zsh) echo 'zsh sets HOME'; exit ;; esac
|
| 71 |
|
| 72 | home=$(echo $HOME)
|
| 73 | test "$home" = ""
|
| 74 | echo status=$?
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| 75 |
|
| 76 | env | grep HOME
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| 77 | echo status=$?
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| 78 |
|
| 79 | # not in interactive shell either
|
| 80 | $SH -i -c 'echo $HOME' | grep /
|
| 81 | echo status=$?
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| 82 |
|
| 83 | ## STDOUT:
|
| 84 | status=0
|
| 85 | status=1
|
| 86 | status=1
|
| 87 | ## END
|
| 88 | ## BUG zsh STDOUT:
|
| 89 | zsh sets HOME
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| 90 | ## END
|
| 91 |
|
| 92 | #### Some vars are set, even without startup file, or env: PATH, PWD
|
| 93 |
|
| 94 | flags=''
|
| 95 | case $SH in
|
| 96 | dash) exit ;;
|
| 97 | bash*)
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| 98 | flags='--noprofile --norc --rcfile /devnull'
|
| 99 | ;;
|
| 100 | osh)
|
| 101 | flags='--rcfile /devnull'
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| 102 | ;;
|
| 103 | esac
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| 104 |
|
| 105 | sh_path=$(which $SH)
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| 106 |
|
| 107 | case $sh_path in
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| 108 | */bin/osh)
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| 109 | # Hack for running with Python2
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| 110 | export PYTHONPATH="$REPO_ROOT:$REPO_ROOT/vendor"
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| 111 | sh_prefix="$(which python2) $REPO_ROOT/bin/oils_for_unix.py osh"
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| 112 | ;;
|
| 113 | *)
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| 114 | sh_prefix=$sh_path
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| 115 | ;;
|
| 116 | esac
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| 117 |
|
| 118 | #echo PATH=$PATH
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| 119 |
|
| 120 |
|
| 121 | # mksh has typeset, not declare
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| 122 | # bash exports PWD, but not PATH PS4
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| 123 |
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| 124 | /usr/bin/env -i PYTHONPATH=$PYTHONPATH $sh_prefix $flags -c 'typeset -p PATH PWD PS4' >&2
|
| 125 | echo path pwd ps4 $?
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| 126 |
|
| 127 | /usr/bin/env -i PYTHONPATH=$PYTHONPATH $sh_prefix $flags -c 'typeset -p SHELLOPTS' >&2
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| 128 | echo shellopts $?
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| 129 |
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| 130 | # bash doesn't set HOME, mksh and zsh do
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| 131 | /usr/bin/env -i PYTHONPATH=$PYTHONPATH $sh_prefix $flags -c 'typeset -p HOME PS4' >&2
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| 132 | echo home ps1 $?
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| 133 |
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| 134 | # bash doesn't set PS1, mksh and zsh do
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| 135 | /usr/bin/env -i PYTHONPATH=$PYTHONPATH $sh_prefix $flags -c 'typeset -p IFS' >&2
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| 136 | echo ifs $?
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| 137 |
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| 138 | ## STDOUT:
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| 139 | path pwd ps4 0
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| 140 | shellopts 0
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| 141 | home ps1 1
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| 142 | ifs 0
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| 143 | ## END
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| 144 |
|
| 145 | ## OK mksh STDOUT:
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| 146 | path pwd ps4 0
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| 147 | shellopts 0
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| 148 | home ps1 0
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| 149 | ifs 0
|
| 150 | ## END
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| 151 |
|
| 152 | ## OK zsh STDOUT:
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| 153 | path pwd ps4 0
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| 154 | shellopts 1
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| 155 | home ps1 0
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| 156 | ifs 0
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| 157 | ## END
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| 158 |
|
| 159 | ## N-I dash STDOUT:
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| 160 | ## END
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| 161 |
|
| 162 | #### UID EUID PPID can't be changed
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| 163 |
|
| 164 | # bash makes these 3 read-only
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| 165 | {
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| 166 | UID=xx $SH -c 'echo uid=$UID'
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| 167 |
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| 168 | EUID=xx $SH -c 'echo euid=$EUID'
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| 169 |
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| 170 | PPID=xx $SH -c 'echo ppid=$PPID'
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| 171 |
|
| 172 | } > out.txt
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| 173 |
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| 174 | # bash shows that vars are readonly
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| 175 | # zsh shows other errors
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| 176 | # cat out.txt
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| 177 | #echo
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| 178 |
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| 179 | grep '=xx' out.txt
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| 180 | echo status=$?
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| 181 |
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| 182 | ## STDOUT:
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| 183 | status=1
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| 184 | ## END
|
| 185 | ## BUG dash/mksh STDOUT:
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| 186 | uid=xx
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| 187 | euid=xx
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| 188 | status=0
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| 189 | ## END
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| 190 |
|
| 191 | #### HOSTNAME OSTYPE can be changed
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| 192 | case $SH in zsh) exit ;; esac
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| 193 |
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| 194 | #$SH -c 'echo hostname=$HOSTNAME'
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| 195 |
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| 196 | HOSTNAME=x $SH -c 'echo hostname=$HOSTNAME'
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| 197 | OSTYPE=x $SH -c 'echo ostype=$OSTYPE'
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| 198 | echo
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| 199 |
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| 200 | #PS4=x $SH -c 'echo ps4=$PS4'
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| 201 |
|
| 202 | # OPTIND is special
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| 203 | #OPTIND=xx $SH -c 'echo optind=$OPTIND'
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| 204 |
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| 205 |
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| 206 | ## STDOUT:
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| 207 | hostname=x
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| 208 | ostype=x
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| 209 |
|
| 210 | ## END
|
| 211 |
|
| 212 | ## BUG zsh STDOUT:
|
| 213 | ## END
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| 214 |
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| 215 |
|
| 216 | #### $1 .. $9 are scoped, while $0 is not
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| 217 | fun() {
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| 218 | echo $0 | grep -o 'sh'
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| 219 | echo $1 $2
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| 220 | }
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| 221 | fun a b
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| 222 |
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| 223 | ## STDOUT:
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| 224 | sh
|
| 225 | a b
|
| 226 | ## END
|
| 227 | ## BUG zsh STDOUT:
|
| 228 | a b
|
| 229 | ## END
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| 230 |
|
| 231 | #### $?
|
| 232 | echo $? # starts out as 0
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| 233 | sh -c 'exit 33'
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| 234 | echo $?
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| 235 | ## STDOUT:
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| 236 | 0
|
| 237 | 33
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| 238 | ## END
|
| 239 | ## status: 0
|
| 240 |
|
| 241 | #### $#
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| 242 | set -- 1 2 3 4
|
| 243 | echo $#
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| 244 | ## stdout: 4
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| 245 | ## status: 0
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| 246 |
|
| 247 | #### $$ looks like a PID
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| 248 | # Just test that it has decimal digits
|
| 249 | echo $$ | egrep '[0-9]+'
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| 250 | ## status: 0
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| 251 |
|
| 252 | #### $$ doesn't change with subshell or command sub
|
| 253 | # Just test that it has decimal digits
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| 254 | set -o errexit
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| 255 | die() {
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| 256 | echo 1>&2 "$@"; exit 1
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| 257 | }
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| 258 | parent=$$
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| 259 | test -n "$parent" || die "empty PID in parent"
|
| 260 | ( child=$$
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| 261 | test -n "$child" || die "empty PID in subshell"
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| 262 | test "$parent" = "$child" || die "should be equal: $parent != $child"
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| 263 | echo 'subshell OK'
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| 264 | )
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| 265 | echo $( child=$$
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| 266 | test -n "$child" || die "empty PID in command sub"
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| 267 | test "$parent" = "$child" || die "should be equal: $parent != $child"
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| 268 | echo 'command sub OK'
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| 269 | )
|
| 270 | exit 3 # make sure we got here
|
| 271 | ## status: 3
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| 272 | ## STDOUT:
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| 273 | subshell OK
|
| 274 | command sub OK
|
| 275 | ## END
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| 276 |
|
| 277 | #### $BASHPID DOES change with subshell and command sub
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| 278 | set -o errexit
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| 279 | die() {
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| 280 | echo 1>&2 "$@"; exit 1
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| 281 | }
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| 282 | parent=$BASHPID
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| 283 | test -n "$parent" || die "empty BASHPID in parent"
|
| 284 | ( child=$BASHPID
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| 285 | test -n "$child" || die "empty BASHPID in subshell"
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| 286 | test "$parent" != "$child" || die "should not be equal: $parent = $child"
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| 287 | echo 'subshell OK'
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| 288 | )
|
| 289 | echo $( child=$BASHPID
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| 290 | test -n "$child" || die "empty BASHPID in command sub"
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| 291 | test "$parent" != "$child" ||
|
| 292 | die "should not be equal: $parent = $child"
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| 293 | echo 'command sub OK'
|
| 294 | )
|
| 295 | exit 3 # make sure we got here
|
| 296 |
|
| 297 | # mksh also implements BASHPID!
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| 298 |
|
| 299 | ## status: 3
|
| 300 | ## STDOUT:
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| 301 | subshell OK
|
| 302 | command sub OK
|
| 303 | ## END
|
| 304 | ## N-I dash/zsh status: 1
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| 305 | ## N-I dash/zsh stdout-json: ""
|
| 306 |
|
| 307 | #### Background PID $! looks like a PID
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| 308 | sleep 0.01 &
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| 309 | pid=$!
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| 310 | wait
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| 311 | echo $pid | egrep '[0-9]+' >/dev/null
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| 312 | echo status=$?
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| 313 | ## stdout: status=0
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| 314 |
|
| 315 | #### $PPID
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| 316 | echo $PPID | egrep '[0-9]+'
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| 317 | ## status: 0
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| 318 |
|
| 319 | # NOTE: There is also $BASHPID
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| 320 |
|
| 321 | #### $PIPESTATUS
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| 322 | echo hi | sh -c 'cat; exit 33' | wc -l >/dev/null
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| 323 | argv.py "${PIPESTATUS[@]}"
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| 324 | ## status: 0
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| 325 | ## STDOUT:
|
| 326 | ['0', '33', '0']
|
| 327 | ## END
|
| 328 | ## N-I dash stdout-json: ""
|
| 329 | ## N-I dash status: 2
|
| 330 | ## N-I zsh STDOUT:
|
| 331 | ['']
|
| 332 | ## END
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| 333 |
|
| 334 | #### $RANDOM
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| 335 | expr $0 : '.*/osh$' && exit 99 # Disabled because of spec-runner.sh issue
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| 336 | echo $RANDOM | egrep '[0-9]+'
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| 337 | ## status: 0
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| 338 | ## N-I dash status: 1
|
| 339 |
|
| 340 | #### $UID and $EUID
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| 341 | # These are both bash-specific.
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| 342 | set -o errexit
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| 343 | echo $UID | egrep -o '[0-9]+' >/dev/null
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| 344 | echo $EUID | egrep -o '[0-9]+' >/dev/null
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| 345 | echo status=$?
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| 346 | ## stdout: status=0
|
| 347 | ## N-I dash/mksh stdout-json: ""
|
| 348 | ## N-I dash/mksh status: 1
|
| 349 |
|
| 350 | #### $OSTYPE is non-empty
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| 351 | test -n "$OSTYPE"
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| 352 | echo status=$?
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| 353 | ## STDOUT:
|
| 354 | status=0
|
| 355 | ## END
|
| 356 | ## N-I dash/mksh STDOUT:
|
| 357 | status=1
|
| 358 | ## END
|
| 359 |
|
| 360 | #### $HOSTNAME
|
| 361 | test "$HOSTNAME" = "$(hostname)"
|
| 362 | echo status=$?
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| 363 | ## STDOUT:
|
| 364 | status=0
|
| 365 | ## END
|
| 366 | ## N-I dash/mksh/zsh STDOUT:
|
| 367 | status=1
|
| 368 | ## END
|
| 369 |
|
| 370 | #### $LINENO is the current line, not line of function call
|
| 371 | echo $LINENO # first line
|
| 372 | g() {
|
| 373 | argv.py $LINENO # line 3
|
| 374 | }
|
| 375 | f() {
|
| 376 | argv.py $LINENO # line 6
|
| 377 | g
|
| 378 | argv.py $LINENO # line 8
|
| 379 | }
|
| 380 | f
|
| 381 | ## STDOUT:
|
| 382 | 1
|
| 383 | ['6']
|
| 384 | ['3']
|
| 385 | ['8']
|
| 386 | ## END
|
| 387 | ## BUG zsh STDOUT:
|
| 388 | 1
|
| 389 | ['1']
|
| 390 | ['1']
|
| 391 | ['3']
|
| 392 | ## END
|
| 393 | ## BUG dash STDOUT:
|
| 394 | 1
|
| 395 | ['2']
|
| 396 | ['2']
|
| 397 | ['4']
|
| 398 | ## END
|
| 399 |
|
| 400 | #### $LINENO in "bare" redirect arg (bug regression)
|
| 401 | filename=$TMP/bare3
|
| 402 | rm -f $filename
|
| 403 | > $TMP/bare$LINENO
|
| 404 | test -f $filename && echo written
|
| 405 | echo $LINENO
|
| 406 | ## STDOUT:
|
| 407 | written
|
| 408 | 5
|
| 409 | ## END
|
| 410 | ## BUG zsh STDOUT:
|
| 411 | ## END
|
| 412 |
|
| 413 | #### $LINENO in redirect arg (bug regression)
|
| 414 | filename=$TMP/lineno_regression3
|
| 415 | rm -f $filename
|
| 416 | echo x > $TMP/lineno_regression$LINENO
|
| 417 | test -f $filename && echo written
|
| 418 | echo $LINENO
|
| 419 | ## STDOUT:
|
| 420 | written
|
| 421 | 5
|
| 422 | ## END
|
| 423 |
|
| 424 | #### $LINENO in [[
|
| 425 | echo one
|
| 426 | [[ $LINENO -eq 2 ]] && echo OK
|
| 427 | ## STDOUT:
|
| 428 | one
|
| 429 | OK
|
| 430 | ## END
|
| 431 | ## N-I dash status: 127
|
| 432 | ## N-I dash stdout: one
|
| 433 | ## N-I mksh status: 1
|
| 434 | ## N-I mksh stdout: one
|
| 435 |
|
| 436 | #### $LINENO in ((
|
| 437 | echo one
|
| 438 | (( x = LINENO ))
|
| 439 | echo $x
|
| 440 | ## STDOUT:
|
| 441 | one
|
| 442 | 2
|
| 443 | ## END
|
| 444 | ## N-I dash stdout-json: "one\n\n"
|
| 445 |
|
| 446 | #### $LINENO in for loop
|
| 447 | # hm bash doesn't take into account the word break. That's OK; we won't either.
|
| 448 | echo one
|
| 449 | for x in \
|
| 450 | $LINENO zzz; do
|
| 451 | echo $x
|
| 452 | done
|
| 453 | ## STDOUT:
|
| 454 | one
|
| 455 | 2
|
| 456 | zzz
|
| 457 | ## END
|
| 458 | ## OK mksh STDOUT:
|
| 459 | one
|
| 460 | 1
|
| 461 | zzz
|
| 462 | ## END
|
| 463 |
|
| 464 | #### $LINENO in other for loops
|
| 465 | set -- a b c
|
| 466 | for x; do
|
| 467 | echo $LINENO $x
|
| 468 | done
|
| 469 | ## STDOUT:
|
| 470 | 3 a
|
| 471 | 3 b
|
| 472 | 3 c
|
| 473 | ## END
|
| 474 |
|
| 475 | #### $LINENO in for (( loop
|
| 476 | # This is a real edge case that I'm not sure we care about. We would have to
|
| 477 | # change the span ID inside the loop to make it really correct.
|
| 478 | echo one
|
| 479 | for (( i = 0; i < $LINENO; i++ )); do
|
| 480 | echo $i
|
| 481 | done
|
| 482 | ## STDOUT:
|
| 483 | one
|
| 484 | 0
|
| 485 | 1
|
| 486 | ## END
|
| 487 | ## N-I dash stdout: one
|
| 488 | ## N-I dash status: 2
|
| 489 | ## BUG mksh stdout: one
|
| 490 | ## BUG mksh status: 1
|
| 491 |
|
| 492 | #### $LINENO for assignment
|
| 493 | a1=$LINENO a2=$LINENO
|
| 494 | b1=$LINENO b2=$LINENO
|
| 495 | echo $a1 $a2
|
| 496 | echo $b1 $b2
|
| 497 | ## STDOUT:
|
| 498 | 1 1
|
| 499 | 2 2
|
| 500 | ## END
|
| 501 |
|
| 502 | #### $LINENO in case
|
| 503 | case $LINENO in
|
| 504 | 1) echo 'got line 1' ;;
|
| 505 | *) echo line=$LINENO
|
| 506 | esac
|
| 507 | ## STDOUT:
|
| 508 | got line 1
|
| 509 | ## END
|
| 510 | ## BUG mksh STDOUT:
|
| 511 | line=3
|
| 512 | ## END
|
| 513 |
|
| 514 | #### $_ with simple command and evaluation
|
| 515 |
|
| 516 | name=world
|
| 517 | echo "hi $name"
|
| 518 | echo "$_"
|
| 519 | ## STDOUT:
|
| 520 | hi world
|
| 521 | hi world
|
| 522 | ## END
|
| 523 | ## N-I dash/mksh STDOUT:
|
| 524 | hi world
|
| 525 |
|
| 526 | ## END
|
| 527 |
|
| 528 | #### $_ and ${_}
|
| 529 | case $SH in (dash|mksh) exit ;; esac
|
| 530 |
|
| 531 | _var=value
|
| 532 |
|
| 533 | : 42
|
| 534 | echo $_ $_var ${_}var
|
| 535 |
|
| 536 | : 'foo'"bar"
|
| 537 | echo $_
|
| 538 |
|
| 539 | ## STDOUT:
|
| 540 | 42 value 42var
|
| 541 | foobar
|
| 542 | ## END
|
| 543 | ## N-I dash/mksh stdout-json: ""
|
| 544 |
|
| 545 | #### $_ with word splitting
|
| 546 | case $SH in (dash|mksh) exit ;; esac
|
| 547 |
|
| 548 | setopt shwordsplit # for ZSH
|
| 549 |
|
| 550 | x='with spaces'
|
| 551 | : $x
|
| 552 | echo $_
|
| 553 |
|
| 554 | ## STDOUT:
|
| 555 | spaces
|
| 556 | ## END
|
| 557 | ## N-I dash/mksh stdout-json: ""
|
| 558 |
|
| 559 | #### $_ with pipeline and subshell
|
| 560 | case $SH in (dash|mksh) exit ;; esac
|
| 561 |
|
| 562 | shopt -s lastpipe
|
| 563 |
|
| 564 | seq 3 | echo last=$_
|
| 565 |
|
| 566 | echo pipeline=$_
|
| 567 |
|
| 568 | ( echo subshell=$_ )
|
| 569 | echo done=$_
|
| 570 |
|
| 571 | ## STDOUT:
|
| 572 | last=
|
| 573 | pipeline=last=
|
| 574 | subshell=pipeline=last=
|
| 575 | done=pipeline=last=
|
| 576 | ## END
|
| 577 |
|
| 578 | # very weird semantics for zsh!
|
| 579 | ## OK zsh STDOUT:
|
| 580 | last=3
|
| 581 | pipeline=last=3
|
| 582 | subshell=
|
| 583 | done=
|
| 584 | ## END
|
| 585 |
|
| 586 | ## N-I dash/mksh stdout-json: ""
|
| 587 |
|
| 588 |
|
| 589 | #### $_ with && and ||
|
| 590 | case $SH in (dash|mksh) exit ;; esac
|
| 591 |
|
| 592 | echo hi && echo last=$_
|
| 593 | echo and=$_
|
| 594 |
|
| 595 | echo hi || echo last=$_
|
| 596 | echo or=$_
|
| 597 |
|
| 598 | ## STDOUT:
|
| 599 | hi
|
| 600 | last=hi
|
| 601 | and=last=hi
|
| 602 | hi
|
| 603 | or=hi
|
| 604 | ## END
|
| 605 |
|
| 606 | ## N-I dash/mksh stdout-json: ""
|
| 607 |
|
| 608 | #### $_ is not reset with (( and [[
|
| 609 |
|
| 610 | # bash is inconsistent because it does it for pipelines and assignments, but
|
| 611 | # not (( and [[
|
| 612 |
|
| 613 | case $SH in (dash|mksh) exit ;; esac
|
| 614 |
|
| 615 | echo simple
|
| 616 | (( a = 2 + 3 ))
|
| 617 | echo "(( $_"
|
| 618 |
|
| 619 | [[ a == *.py ]]
|
| 620 | echo "[[ $_"
|
| 621 |
|
| 622 | ## STDOUT:
|
| 623 | simple
|
| 624 | (( simple
|
| 625 | [[ (( simple
|
| 626 | ## END
|
| 627 |
|
| 628 | ## N-I dash/mksh stdout-json: ""
|
| 629 |
|
| 630 |
|
| 631 | #### $_ with assignments, arrays, etc.
|
| 632 | case $SH in (dash|mksh) exit ;; esac
|
| 633 |
|
| 634 | : foo
|
| 635 | echo "colon [$_]"
|
| 636 |
|
| 637 | s=bar
|
| 638 | echo "bare assign [$_]"
|
| 639 |
|
| 640 | # zsh uses declare; bash uses s=bar
|
| 641 | declare s=bar
|
| 642 | echo "declare [$_]"
|
| 643 |
|
| 644 | # zsh remains s:declare, bash resets it
|
| 645 | a=(1 2)
|
| 646 | echo "array [$_]"
|
| 647 |
|
| 648 | # zsh sets it to declare, bash uses the LHS a
|
| 649 | declare a=(1 2)
|
| 650 | echo "declare array [$_]"
|
| 651 |
|
| 652 | declare -g d=(1 2)
|
| 653 | echo "declare flag [$_]"
|
| 654 |
|
| 655 | ## STDOUT:
|
| 656 | colon [foo]
|
| 657 | bare assign []
|
| 658 | declare [s=bar]
|
| 659 | array []
|
| 660 | declare array [a]
|
| 661 | declare flag [d]
|
| 662 | ## END
|
| 663 |
|
| 664 | ## OK zsh STDOUT:
|
| 665 | colon [foo]
|
| 666 | bare assign []
|
| 667 | declare [declare]
|
| 668 | array [declare [declare]]
|
| 669 | declare array [declare]
|
| 670 | declare flag [-g]
|
| 671 | ## END
|
| 672 |
|
| 673 | ## OK osh STDOUT:
|
| 674 | colon [foo]
|
| 675 | bare assign [colon [foo]]
|
| 676 | declare [bare assign [colon [foo]]]
|
| 677 | array [declare [bare assign [colon [foo]]]]
|
| 678 | declare array [array [declare [bare assign [colon [foo]]]]]
|
| 679 | declare flag [declare array [array [declare [bare assign [colon [foo]]]]]]
|
| 680 | ## END
|
| 681 |
|
| 682 | ## N-I dash/mksh stdout-json: ""
|
| 683 |
|
| 684 | #### $_ with loop
|
| 685 |
|
| 686 | case $SH in (dash|mksh) exit ;; esac
|
| 687 |
|
| 688 | # zsh resets it when in a loop
|
| 689 |
|
| 690 | echo init
|
| 691 | echo begin=$_
|
| 692 | for x in 1 2 3; do
|
| 693 | echo prev=$_
|
| 694 | done
|
| 695 |
|
| 696 | ## STDOUT:
|
| 697 | init
|
| 698 | begin=init
|
| 699 | prev=begin=init
|
| 700 | prev=prev=begin=init
|
| 701 | prev=prev=prev=begin=init
|
| 702 | ## END
|
| 703 |
|
| 704 | ## OK zsh STDOUT:
|
| 705 | init
|
| 706 | begin=init
|
| 707 | prev=
|
| 708 | prev=prev=
|
| 709 | prev=prev=prev=
|
| 710 | ## END
|
| 711 | ## N-I dash/mksh stdout-json: ""
|
| 712 |
|
| 713 |
|
| 714 | #### $_ is not undefined on first use
|
| 715 | set -e
|
| 716 |
|
| 717 | x=$($SH -u -c 'echo prev=$_')
|
| 718 | echo status=$?
|
| 719 |
|
| 720 | # bash and mksh set $_ to $0 at first; zsh is empty
|
| 721 | #echo "$x"
|
| 722 |
|
| 723 | ## STDOUT:
|
| 724 | status=0
|
| 725 | ## END
|
| 726 |
|
| 727 | ## N-I dash status: 2
|
| 728 | ## N-I dash stdout-json: ""
|
| 729 |
|
| 730 | #### BASH_VERSION / OILS_VERSION
|
| 731 | case $SH in
|
| 732 | bash*)
|
| 733 | # BASH_VERSION=zz
|
| 734 |
|
| 735 | echo $BASH_VERSION | egrep -o '4\.4\.0' > /dev/null
|
| 736 | echo matched=$?
|
| 737 | ;;
|
| 738 | *osh)
|
| 739 | # note: version string is mutable like in bash. I guess that's useful for
|
| 740 | # testing? We might want a strict mode to eliminate that?
|
| 741 |
|
| 742 | echo $OILS_VERSION | egrep -o '[0-9]+\.[0-9]+\.' > /dev/null
|
| 743 | echo matched=$?
|
| 744 | ;;
|
| 745 | *)
|
| 746 | echo 'no version'
|
| 747 | ;;
|
| 748 | esac
|
| 749 | ## STDOUT:
|
| 750 | matched=0
|
| 751 | ## END
|
| 752 | ## N-I dash/mksh/zsh STDOUT:
|
| 753 | no version
|
| 754 | ## END
|
| 755 |
|
| 756 | #### $SECONDS
|
| 757 |
|
| 758 | # should be zero seconds
|
| 759 | echo seconds=$SECONDS
|
| 760 |
|
| 761 | ## status: 0
|
| 762 | ## STDOUT:
|
| 763 | seconds=0
|
| 764 | ## END
|
| 765 | ## N-I dash STDOUT:
|
| 766 | seconds=
|
| 767 | ## END
|
| 768 |
|