| 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
|
| 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
|
| 46 |
|
| 47 | $sh -c 'echo $PATH' > path.txt
|
| 48 |
|
| 49 | PATH=$old_path
|
| 50 |
|
| 51 | # looks like PATH=/usr/bin:/bin for mksh, but more complicated for others
|
| 52 | # cat path.txt
|
| 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=$?
|
| 75 |
|
| 76 | env | grep HOME
|
| 77 | echo status=$?
|
| 78 |
|
| 79 | # not in interactive shell either
|
| 80 | $SH -i -c 'echo $HOME' | grep /
|
| 81 | echo status=$?
|
| 82 |
|
| 83 | ## STDOUT:
|
| 84 | status=0
|
| 85 | status=1
|
| 86 | status=1
|
| 87 | ## END
|
| 88 | ## BUG zsh STDOUT:
|
| 89 | zsh sets HOME
|
| 90 | ## END
|
| 91 |
|
| 92 | #### Vars set interactively only: $HISTFILE
|
| 93 | case $SH in dash|mksh|zsh) exit ;; esac
|
| 94 |
|
| 95 | $SH --norc --rcfile /dev/null -c 'echo histfile=${HISTFILE:+yes}'
|
| 96 | $SH --norc --rcfile /dev/null -i -c 'echo histfile=${HISTFILE:+yes}'
|
| 97 |
|
| 98 | ## STDOUT:
|
| 99 | histfile=
|
| 100 | histfile=yes
|
| 101 | ## END
|
| 102 |
|
| 103 | ## N-I dash/mksh/zsh STDOUT:
|
| 104 | ## END
|
| 105 |
|
| 106 | #### Some vars are set, even without startup file, or env: PATH, PWD
|
| 107 |
|
| 108 | flags=''
|
| 109 | case $SH in
|
| 110 | dash) exit ;;
|
| 111 | bash*)
|
| 112 | flags='--noprofile --norc --rcfile /devnull'
|
| 113 | ;;
|
| 114 | osh)
|
| 115 | flags='--rcfile /devnull'
|
| 116 | ;;
|
| 117 | esac
|
| 118 |
|
| 119 | sh_path=$(which $SH)
|
| 120 |
|
| 121 | case $sh_path in
|
| 122 | */bin/osh)
|
| 123 | # Hack for running with Python2
|
| 124 | export PYTHONPATH="$REPO_ROOT:$REPO_ROOT/vendor"
|
| 125 | sh_prefix="$(which python2) $REPO_ROOT/bin/oils_for_unix.py osh"
|
| 126 | ;;
|
| 127 | *)
|
| 128 | sh_prefix=$sh_path
|
| 129 | ;;
|
| 130 | esac
|
| 131 |
|
| 132 | #echo PATH=$PATH
|
| 133 |
|
| 134 |
|
| 135 | # mksh has typeset, not declare
|
| 136 | # bash exports PWD, but not PATH PS4
|
| 137 |
|
| 138 | /usr/bin/env -i PYTHONPATH=$PYTHONPATH $sh_prefix $flags -c 'typeset -p PATH PWD PS4' >&2
|
| 139 | echo path pwd ps4 $?
|
| 140 |
|
| 141 | /usr/bin/env -i PYTHONPATH=$PYTHONPATH $sh_prefix $flags -c 'typeset -p SHELLOPTS' >&2
|
| 142 | echo shellopts $?
|
| 143 |
|
| 144 | # bash doesn't set HOME, mksh and zsh do
|
| 145 | /usr/bin/env -i PYTHONPATH=$PYTHONPATH $sh_prefix $flags -c 'typeset -p HOME PS1' >&2
|
| 146 | echo home ps1 $?
|
| 147 |
|
| 148 | # IFS is set, but not exported
|
| 149 | /usr/bin/env -i PYTHONPATH=$PYTHONPATH $sh_prefix $flags -c 'typeset -p IFS' >&2
|
| 150 | echo ifs $?
|
| 151 |
|
| 152 | ## STDOUT:
|
| 153 | path pwd ps4 0
|
| 154 | shellopts 0
|
| 155 | home ps1 1
|
| 156 | ifs 0
|
| 157 | ## END
|
| 158 |
|
| 159 | ## OK mksh STDOUT:
|
| 160 | path pwd ps4 0
|
| 161 | shellopts 0
|
| 162 | home ps1 0
|
| 163 | ifs 0
|
| 164 | ## END
|
| 165 |
|
| 166 | ## OK zsh STDOUT:
|
| 167 | path pwd ps4 0
|
| 168 | shellopts 1
|
| 169 | home ps1 0
|
| 170 | ifs 0
|
| 171 | ## END
|
| 172 |
|
| 173 | ## N-I dash STDOUT:
|
| 174 | ## END
|
| 175 |
|
| 176 | #### UID EUID PPID can't be changed
|
| 177 |
|
| 178 | # bash makes these 3 read-only
|
| 179 | {
|
| 180 | UID=xx $SH -c 'echo uid=$UID'
|
| 181 |
|
| 182 | EUID=xx $SH -c 'echo euid=$EUID'
|
| 183 |
|
| 184 | PPID=xx $SH -c 'echo ppid=$PPID'
|
| 185 |
|
| 186 | } > out.txt
|
| 187 |
|
| 188 | # bash shows that vars are readonly
|
| 189 | # zsh shows other errors
|
| 190 | # cat out.txt
|
| 191 | #echo
|
| 192 |
|
| 193 | grep '=xx' out.txt
|
| 194 | echo status=$?
|
| 195 |
|
| 196 | ## STDOUT:
|
| 197 | status=1
|
| 198 | ## END
|
| 199 | ## BUG dash/mksh STDOUT:
|
| 200 | uid=xx
|
| 201 | euid=xx
|
| 202 | status=0
|
| 203 | ## END
|
| 204 |
|
| 205 | #### HOSTNAME OSTYPE can be changed
|
| 206 | case $SH in zsh) exit ;; esac
|
| 207 |
|
| 208 | #$SH -c 'echo hostname=$HOSTNAME'
|
| 209 |
|
| 210 | HOSTNAME=x $SH -c 'echo hostname=$HOSTNAME'
|
| 211 | OSTYPE=x $SH -c 'echo ostype=$OSTYPE'
|
| 212 | echo
|
| 213 |
|
| 214 | #PS4=x $SH -c 'echo ps4=$PS4'
|
| 215 |
|
| 216 | # OPTIND is special
|
| 217 | #OPTIND=xx $SH -c 'echo optind=$OPTIND'
|
| 218 |
|
| 219 |
|
| 220 | ## STDOUT:
|
| 221 | hostname=x
|
| 222 | ostype=x
|
| 223 |
|
| 224 | ## END
|
| 225 |
|
| 226 | ## BUG zsh STDOUT:
|
| 227 | ## END
|
| 228 |
|
| 229 |
|
| 230 | #### $1 .. $9 are scoped, while $0 is not
|
| 231 | fun() {
|
| 232 | echo $0 | grep -o 'sh'
|
| 233 | echo $1 $2
|
| 234 | }
|
| 235 | fun a b
|
| 236 |
|
| 237 | ## STDOUT:
|
| 238 | sh
|
| 239 | a b
|
| 240 | ## END
|
| 241 | ## BUG zsh STDOUT:
|
| 242 | a b
|
| 243 | ## END
|
| 244 |
|
| 245 | #### $?
|
| 246 | echo $? # starts out as 0
|
| 247 | sh -c 'exit 33'
|
| 248 | echo $?
|
| 249 | ## STDOUT:
|
| 250 | 0
|
| 251 | 33
|
| 252 | ## END
|
| 253 | ## status: 0
|
| 254 |
|
| 255 | #### $#
|
| 256 | set -- 1 2 3 4
|
| 257 | echo $#
|
| 258 | ## stdout: 4
|
| 259 | ## status: 0
|
| 260 |
|
| 261 | #### $$ looks like a PID
|
| 262 | # Just test that it has decimal digits
|
| 263 | echo $$ | egrep '[0-9]+'
|
| 264 | ## status: 0
|
| 265 |
|
| 266 | #### $$ doesn't change with subshell or command sub
|
| 267 | # Just test that it has decimal digits
|
| 268 | set -o errexit
|
| 269 | die() {
|
| 270 | echo 1>&2 "$@"; exit 1
|
| 271 | }
|
| 272 | parent=$$
|
| 273 | test -n "$parent" || die "empty PID in parent"
|
| 274 | ( child=$$
|
| 275 | test -n "$child" || die "empty PID in subshell"
|
| 276 | test "$parent" = "$child" || die "should be equal: $parent != $child"
|
| 277 | echo 'subshell OK'
|
| 278 | )
|
| 279 | echo $( child=$$
|
| 280 | test -n "$child" || die "empty PID in command sub"
|
| 281 | test "$parent" = "$child" || die "should be equal: $parent != $child"
|
| 282 | echo 'command sub OK'
|
| 283 | )
|
| 284 | exit 3 # make sure we got here
|
| 285 | ## status: 3
|
| 286 | ## STDOUT:
|
| 287 | subshell OK
|
| 288 | command sub OK
|
| 289 | ## END
|
| 290 |
|
| 291 | #### $BASHPID DOES change with subshell and command sub
|
| 292 | set -o errexit
|
| 293 | die() {
|
| 294 | echo 1>&2 "$@"; exit 1
|
| 295 | }
|
| 296 | parent=$BASHPID
|
| 297 | test -n "$parent" || die "empty BASHPID in parent"
|
| 298 | ( child=$BASHPID
|
| 299 | test -n "$child" || die "empty BASHPID in subshell"
|
| 300 | test "$parent" != "$child" || die "should not be equal: $parent = $child"
|
| 301 | echo 'subshell OK'
|
| 302 | )
|
| 303 | echo $( child=$BASHPID
|
| 304 | test -n "$child" || die "empty BASHPID in command sub"
|
| 305 | test "$parent" != "$child" ||
|
| 306 | die "should not be equal: $parent = $child"
|
| 307 | echo 'command sub OK'
|
| 308 | )
|
| 309 | exit 3 # make sure we got here
|
| 310 |
|
| 311 | # mksh also implements BASHPID!
|
| 312 |
|
| 313 | ## status: 3
|
| 314 | ## STDOUT:
|
| 315 | subshell OK
|
| 316 | command sub OK
|
| 317 | ## END
|
| 318 | ## N-I dash/zsh status: 1
|
| 319 | ## N-I dash/zsh stdout-json: ""
|
| 320 |
|
| 321 | #### Background PID $! looks like a PID
|
| 322 | sleep 0.01 &
|
| 323 | pid=$!
|
| 324 | wait
|
| 325 | echo $pid | egrep '[0-9]+' >/dev/null
|
| 326 | echo status=$?
|
| 327 | ## stdout: status=0
|
| 328 |
|
| 329 | #### $PPID
|
| 330 | echo $PPID | egrep '[0-9]+'
|
| 331 | ## status: 0
|
| 332 |
|
| 333 | # NOTE: There is also $BASHPID
|
| 334 |
|
| 335 | #### $PIPESTATUS
|
| 336 | echo hi | sh -c 'cat; exit 33' | wc -l >/dev/null
|
| 337 | argv.py "${PIPESTATUS[@]}"
|
| 338 | ## status: 0
|
| 339 | ## STDOUT:
|
| 340 | ['0', '33', '0']
|
| 341 | ## END
|
| 342 | ## N-I dash stdout-json: ""
|
| 343 | ## N-I dash status: 2
|
| 344 | ## N-I zsh STDOUT:
|
| 345 | ['']
|
| 346 | ## END
|
| 347 |
|
| 348 | #### $RANDOM
|
| 349 | expr $0 : '.*/osh$' && exit 99 # Disabled because of spec-runner.sh issue
|
| 350 | echo $RANDOM | egrep '[0-9]+'
|
| 351 | ## status: 0
|
| 352 | ## N-I dash status: 1
|
| 353 |
|
| 354 | #### $UID and $EUID
|
| 355 | # These are both bash-specific.
|
| 356 | set -o errexit
|
| 357 | echo $UID | egrep -o '[0-9]+' >/dev/null
|
| 358 | echo $EUID | egrep -o '[0-9]+' >/dev/null
|
| 359 | echo status=$?
|
| 360 | ## stdout: status=0
|
| 361 | ## N-I dash/mksh stdout-json: ""
|
| 362 | ## N-I dash/mksh status: 1
|
| 363 |
|
| 364 | #### $OSTYPE is non-empty
|
| 365 | test -n "$OSTYPE"
|
| 366 | echo status=$?
|
| 367 | ## STDOUT:
|
| 368 | status=0
|
| 369 | ## END
|
| 370 | ## N-I dash/mksh STDOUT:
|
| 371 | status=1
|
| 372 | ## END
|
| 373 |
|
| 374 | #### $HOSTNAME
|
| 375 | test "$HOSTNAME" = "$(hostname)"
|
| 376 | echo status=$?
|
| 377 | ## STDOUT:
|
| 378 | status=0
|
| 379 | ## END
|
| 380 | ## N-I dash/mksh/zsh STDOUT:
|
| 381 | status=1
|
| 382 | ## END
|
| 383 |
|
| 384 | #### $LINENO is the current line, not line of function call
|
| 385 | echo $LINENO # first line
|
| 386 | g() {
|
| 387 | argv.py $LINENO # line 3
|
| 388 | }
|
| 389 | f() {
|
| 390 | argv.py $LINENO # line 6
|
| 391 | g
|
| 392 | argv.py $LINENO # line 8
|
| 393 | }
|
| 394 | f
|
| 395 | ## STDOUT:
|
| 396 | 1
|
| 397 | ['6']
|
| 398 | ['3']
|
| 399 | ['8']
|
| 400 | ## END
|
| 401 | ## BUG zsh STDOUT:
|
| 402 | 1
|
| 403 | ['1']
|
| 404 | ['1']
|
| 405 | ['3']
|
| 406 | ## END
|
| 407 | ## BUG dash STDOUT:
|
| 408 | 1
|
| 409 | ['2']
|
| 410 | ['2']
|
| 411 | ['4']
|
| 412 | ## END
|
| 413 |
|
| 414 | #### $LINENO in "bare" redirect arg (bug regression)
|
| 415 | filename=$TMP/bare3
|
| 416 | rm -f $filename
|
| 417 | > $TMP/bare$LINENO
|
| 418 | test -f $filename && echo written
|
| 419 | echo $LINENO
|
| 420 | ## STDOUT:
|
| 421 | written
|
| 422 | 5
|
| 423 | ## END
|
| 424 | ## BUG zsh STDOUT:
|
| 425 | ## END
|
| 426 |
|
| 427 | #### $LINENO in redirect arg (bug regression)
|
| 428 | filename=$TMP/lineno_regression3
|
| 429 | rm -f $filename
|
| 430 | echo x > $TMP/lineno_regression$LINENO
|
| 431 | test -f $filename && echo written
|
| 432 | echo $LINENO
|
| 433 | ## STDOUT:
|
| 434 | written
|
| 435 | 5
|
| 436 | ## END
|
| 437 |
|
| 438 | #### $LINENO in [[
|
| 439 | echo one
|
| 440 | [[ $LINENO -eq 2 ]] && echo OK
|
| 441 | ## STDOUT:
|
| 442 | one
|
| 443 | OK
|
| 444 | ## END
|
| 445 | ## N-I dash status: 127
|
| 446 | ## N-I dash stdout: one
|
| 447 | ## N-I mksh status: 1
|
| 448 | ## N-I mksh stdout: one
|
| 449 |
|
| 450 | #### $LINENO in ((
|
| 451 | echo one
|
| 452 | (( x = LINENO ))
|
| 453 | echo $x
|
| 454 | ## STDOUT:
|
| 455 | one
|
| 456 | 2
|
| 457 | ## END
|
| 458 | ## N-I dash stdout-json: "one\n\n"
|
| 459 |
|
| 460 | #### $LINENO in for loop
|
| 461 | # hm bash doesn't take into account the word break. That's OK; we won't either.
|
| 462 | echo one
|
| 463 | for x in \
|
| 464 | $LINENO zzz; do
|
| 465 | echo $x
|
| 466 | done
|
| 467 | ## STDOUT:
|
| 468 | one
|
| 469 | 2
|
| 470 | zzz
|
| 471 | ## END
|
| 472 | ## OK mksh STDOUT:
|
| 473 | one
|
| 474 | 1
|
| 475 | zzz
|
| 476 | ## END
|
| 477 |
|
| 478 | #### $LINENO in other for loops
|
| 479 | set -- a b c
|
| 480 | for x; do
|
| 481 | echo $LINENO $x
|
| 482 | done
|
| 483 | ## STDOUT:
|
| 484 | 3 a
|
| 485 | 3 b
|
| 486 | 3 c
|
| 487 | ## END
|
| 488 |
|
| 489 | #### $LINENO in for (( loop
|
| 490 | # This is a real edge case that I'm not sure we care about. We would have to
|
| 491 | # change the span ID inside the loop to make it really correct.
|
| 492 | echo one
|
| 493 | for (( i = 0; i < $LINENO; i++ )); do
|
| 494 | echo $i
|
| 495 | done
|
| 496 | ## STDOUT:
|
| 497 | one
|
| 498 | 0
|
| 499 | 1
|
| 500 | ## END
|
| 501 | ## N-I dash stdout: one
|
| 502 | ## N-I dash status: 2
|
| 503 | ## BUG mksh stdout: one
|
| 504 | ## BUG mksh status: 1
|
| 505 |
|
| 506 | #### $LINENO for assignment
|
| 507 | a1=$LINENO a2=$LINENO
|
| 508 | b1=$LINENO b2=$LINENO
|
| 509 | echo $a1 $a2
|
| 510 | echo $b1 $b2
|
| 511 | ## STDOUT:
|
| 512 | 1 1
|
| 513 | 2 2
|
| 514 | ## END
|
| 515 |
|
| 516 | #### $LINENO in case
|
| 517 | case $LINENO in
|
| 518 | 1) echo 'got line 1' ;;
|
| 519 | *) echo line=$LINENO
|
| 520 | esac
|
| 521 | ## STDOUT:
|
| 522 | got line 1
|
| 523 | ## END
|
| 524 | ## BUG mksh STDOUT:
|
| 525 | line=3
|
| 526 | ## END
|
| 527 |
|
| 528 | #### $_ with simple command and evaluation
|
| 529 |
|
| 530 | name=world
|
| 531 | echo "hi $name"
|
| 532 | echo "$_"
|
| 533 | ## STDOUT:
|
| 534 | hi world
|
| 535 | hi world
|
| 536 | ## END
|
| 537 | ## N-I dash/mksh STDOUT:
|
| 538 | hi world
|
| 539 |
|
| 540 | ## END
|
| 541 |
|
| 542 | #### $_ and ${_}
|
| 543 | case $SH in (dash|mksh) exit ;; esac
|
| 544 |
|
| 545 | _var=value
|
| 546 |
|
| 547 | : 42
|
| 548 | echo $_ $_var ${_}var
|
| 549 |
|
| 550 | : 'foo'"bar"
|
| 551 | echo $_
|
| 552 |
|
| 553 | ## STDOUT:
|
| 554 | 42 value 42var
|
| 555 | foobar
|
| 556 | ## END
|
| 557 | ## N-I dash/mksh stdout-json: ""
|
| 558 |
|
| 559 | #### $_ with word splitting
|
| 560 | case $SH in (dash|mksh) exit ;; esac
|
| 561 |
|
| 562 | setopt shwordsplit # for ZSH
|
| 563 |
|
| 564 | x='with spaces'
|
| 565 | : $x
|
| 566 | echo $_
|
| 567 |
|
| 568 | ## STDOUT:
|
| 569 | spaces
|
| 570 | ## END
|
| 571 | ## N-I dash/mksh stdout-json: ""
|
| 572 |
|
| 573 | #### $_ with pipeline and subshell
|
| 574 | case $SH in (dash|mksh) exit ;; esac
|
| 575 |
|
| 576 | shopt -s lastpipe
|
| 577 |
|
| 578 | seq 3 | echo last=$_
|
| 579 |
|
| 580 | echo pipeline=$_
|
| 581 |
|
| 582 | ( echo subshell=$_ )
|
| 583 | echo done=$_
|
| 584 |
|
| 585 | ## STDOUT:
|
| 586 | last=
|
| 587 | pipeline=last=
|
| 588 | subshell=pipeline=last=
|
| 589 | done=pipeline=last=
|
| 590 | ## END
|
| 591 |
|
| 592 | # very weird semantics for zsh!
|
| 593 | ## OK zsh STDOUT:
|
| 594 | last=3
|
| 595 | pipeline=last=3
|
| 596 | subshell=
|
| 597 | done=
|
| 598 | ## END
|
| 599 |
|
| 600 | ## N-I dash/mksh stdout-json: ""
|
| 601 |
|
| 602 |
|
| 603 | #### $_ with && and ||
|
| 604 | case $SH in (dash|mksh) exit ;; esac
|
| 605 |
|
| 606 | echo hi && echo last=$_
|
| 607 | echo and=$_
|
| 608 |
|
| 609 | echo hi || echo last=$_
|
| 610 | echo or=$_
|
| 611 |
|
| 612 | ## STDOUT:
|
| 613 | hi
|
| 614 | last=hi
|
| 615 | and=last=hi
|
| 616 | hi
|
| 617 | or=hi
|
| 618 | ## END
|
| 619 |
|
| 620 | ## N-I dash/mksh stdout-json: ""
|
| 621 |
|
| 622 | #### $_ is not reset with (( and [[
|
| 623 |
|
| 624 | # bash is inconsistent because it does it for pipelines and assignments, but
|
| 625 | # not (( and [[
|
| 626 |
|
| 627 | case $SH in (dash|mksh) exit ;; esac
|
| 628 |
|
| 629 | echo simple
|
| 630 | (( a = 2 + 3 ))
|
| 631 | echo "(( $_"
|
| 632 |
|
| 633 | [[ a == *.py ]]
|
| 634 | echo "[[ $_"
|
| 635 |
|
| 636 | ## STDOUT:
|
| 637 | simple
|
| 638 | (( simple
|
| 639 | [[ (( simple
|
| 640 | ## END
|
| 641 |
|
| 642 | ## N-I dash/mksh stdout-json: ""
|
| 643 |
|
| 644 |
|
| 645 | #### $_ with assignments, arrays, etc.
|
| 646 | case $SH in (dash|mksh) exit ;; esac
|
| 647 |
|
| 648 | : foo
|
| 649 | echo "colon [$_]"
|
| 650 |
|
| 651 | s=bar
|
| 652 | echo "bare assign [$_]"
|
| 653 |
|
| 654 | # zsh uses declare; bash uses s=bar
|
| 655 | declare s=bar
|
| 656 | echo "declare [$_]"
|
| 657 |
|
| 658 | # zsh remains s:declare, bash resets it
|
| 659 | a=(1 2)
|
| 660 | echo "array [$_]"
|
| 661 |
|
| 662 | # zsh sets it to declare, bash uses the LHS a
|
| 663 | declare a=(1 2)
|
| 664 | echo "declare array [$_]"
|
| 665 |
|
| 666 | declare -g d=(1 2)
|
| 667 | echo "declare flag [$_]"
|
| 668 |
|
| 669 | ## STDOUT:
|
| 670 | colon [foo]
|
| 671 | bare assign []
|
| 672 | declare [s=bar]
|
| 673 | array []
|
| 674 | declare array [a]
|
| 675 | declare flag [d]
|
| 676 | ## END
|
| 677 |
|
| 678 | ## OK zsh STDOUT:
|
| 679 | colon [foo]
|
| 680 | bare assign []
|
| 681 | declare [declare]
|
| 682 | array [declare [declare]]
|
| 683 | declare array [declare]
|
| 684 | declare flag [-g]
|
| 685 | ## END
|
| 686 |
|
| 687 | ## OK osh STDOUT:
|
| 688 | colon [foo]
|
| 689 | bare assign [colon [foo]]
|
| 690 | declare [bare assign [colon [foo]]]
|
| 691 | array [declare [bare assign [colon [foo]]]]
|
| 692 | declare array [array [declare [bare assign [colon [foo]]]]]
|
| 693 | declare flag [declare array [array [declare [bare assign [colon [foo]]]]]]
|
| 694 | ## END
|
| 695 |
|
| 696 | ## N-I dash/mksh stdout-json: ""
|
| 697 |
|
| 698 | #### $_ with loop
|
| 699 |
|
| 700 | case $SH in (dash|mksh) exit ;; esac
|
| 701 |
|
| 702 | # zsh resets it when in a loop
|
| 703 |
|
| 704 | echo init
|
| 705 | echo begin=$_
|
| 706 | for x in 1 2 3; do
|
| 707 | echo prev=$_
|
| 708 | done
|
| 709 |
|
| 710 | ## STDOUT:
|
| 711 | init
|
| 712 | begin=init
|
| 713 | prev=begin=init
|
| 714 | prev=prev=begin=init
|
| 715 | prev=prev=prev=begin=init
|
| 716 | ## END
|
| 717 |
|
| 718 | ## OK zsh STDOUT:
|
| 719 | init
|
| 720 | begin=init
|
| 721 | prev=
|
| 722 | prev=prev=
|
| 723 | prev=prev=prev=
|
| 724 | ## END
|
| 725 | ## N-I dash/mksh stdout-json: ""
|
| 726 |
|
| 727 |
|
| 728 | #### $_ is not undefined on first use
|
| 729 | set -e
|
| 730 |
|
| 731 | x=$($SH -u -c 'echo prev=$_')
|
| 732 | echo status=$?
|
| 733 |
|
| 734 | # bash and mksh set $_ to $0 at first; zsh is empty
|
| 735 | #echo "$x"
|
| 736 |
|
| 737 | ## STDOUT:
|
| 738 | status=0
|
| 739 | ## END
|
| 740 |
|
| 741 | ## N-I dash status: 2
|
| 742 | ## N-I dash stdout-json: ""
|
| 743 |
|
| 744 | #### BASH_VERSION / OILS_VERSION
|
| 745 | case $SH in
|
| 746 | bash*)
|
| 747 | # BASH_VERSION=zz
|
| 748 |
|
| 749 | echo $BASH_VERSION | egrep -o '4\.4\.0' > /dev/null
|
| 750 | echo matched=$?
|
| 751 | ;;
|
| 752 | *osh)
|
| 753 | # note: version string is mutable like in bash. I guess that's useful for
|
| 754 | # testing? We might want a strict mode to eliminate that?
|
| 755 |
|
| 756 | echo $OILS_VERSION | egrep -o '[0-9]+\.[0-9]+\.' > /dev/null
|
| 757 | echo matched=$?
|
| 758 | ;;
|
| 759 | *)
|
| 760 | echo 'no version'
|
| 761 | ;;
|
| 762 | esac
|
| 763 | ## STDOUT:
|
| 764 | matched=0
|
| 765 | ## END
|
| 766 | ## N-I dash/mksh/zsh STDOUT:
|
| 767 | no version
|
| 768 | ## END
|
| 769 |
|
| 770 | #### $SECONDS
|
| 771 |
|
| 772 | # should be zero seconds
|
| 773 | echo seconds=$SECONDS
|
| 774 |
|
| 775 | ## status: 0
|
| 776 | ## STDOUT:
|
| 777 | seconds=0
|
| 778 | ## END
|
| 779 | ## N-I dash STDOUT:
|
| 780 | seconds=
|
| 781 | ## END
|
| 782 |
|