| 1 | # |
| 2 | # echo, read, mapfile |
| 3 | # TODO mapfile options: -c, -C, -u, etc. |
| 4 | |
| 5 | #### echo dashes |
| 6 | echo - |
| 7 | echo -- |
| 8 | echo --- |
| 9 | ## stdout-json: "-\n--\n---\n" |
| 10 | ## BUG zsh stdout-json: "\n--\n---\n" |
| 11 | |
| 12 | #### echo backslashes |
| 13 | echo \\ |
| 14 | echo '\' |
| 15 | echo '\\' |
| 16 | echo "\\" |
| 17 | ## STDOUT: |
| 18 | \ |
| 19 | \ |
| 20 | \\ |
| 21 | \ |
| 22 | ## BUG dash/mksh/zsh STDOUT: |
| 23 | \ |
| 24 | \ |
| 25 | \ |
| 26 | \ |
| 27 | ## END |
| 28 | |
| 29 | #### echo -e backslashes |
| 30 | echo -e \\ |
| 31 | echo -e '\' |
| 32 | echo -e '\\' |
| 33 | echo -e "\\" |
| 34 | ## STDOUT: |
| 35 | \ |
| 36 | \ |
| 37 | \ |
| 38 | \ |
| 39 | ## N-I dash STDOUT: |
| 40 | -e \ |
| 41 | -e \ |
| 42 | -e \ |
| 43 | -e \ |
| 44 | ## END |
| 45 | |
| 46 | #### echo -en |
| 47 | echo -en 'abc\ndef\n' |
| 48 | ## stdout-json: "abc\ndef\n" |
| 49 | ## N-I dash stdout-json: "-en abc\ndef\n\n" |
| 50 | |
| 51 | #### echo -ez (invalid flag) |
| 52 | # bash differs from the other three shells, but its behavior is possibly more |
| 53 | # sensible, if you're going to ignore the error. It doesn't make sense for |
| 54 | # the 'e' to mean 2 different things simultaneously: flag and literal to be |
| 55 | # printed. |
| 56 | echo -ez 'abc\n' |
| 57 | ## stdout-json: "-ez abc\\n\n" |
| 58 | ## OK dash/mksh/zsh stdout-json: "-ez abc\n\n" |
| 59 | |
| 60 | #### echo -e with embedded newline |
| 61 | flags='-e' |
| 62 | case $SH in dash) flags='' ;; esac |
| 63 | |
| 64 | echo $flags 'foo |
| 65 | bar' |
| 66 | ## STDOUT: |
| 67 | foo |
| 68 | bar |
| 69 | ## END |
| 70 | |
| 71 | #### echo -e line continuation |
| 72 | flags='-e' |
| 73 | case $SH in dash) flags='' ;; esac |
| 74 | |
| 75 | echo $flags 'foo\ |
| 76 | bar' |
| 77 | ## STDOUT: |
| 78 | foo\ |
| 79 | bar |
| 80 | ## END |
| 81 | |
| 82 | #### echo -e with C escapes |
| 83 | # https://www.gnu.org/software/bash/manual/bashref.html#Bourne-Shell-Builtins |
| 84 | # not sure why \c is like NUL? |
| 85 | # zsh doesn't allow \E for some reason. |
| 86 | echo -e '\a\b\d\e\f' |
| 87 | ## stdout-json: "\u0007\u0008\\d\u001b\u000c\n" |
| 88 | ## N-I dash stdout-json: "-e \u0007\u0008\\d\\e\u000c\n" |
| 89 | |
| 90 | #### echo -e with whitespace C escapes |
| 91 | echo -e '\n\r\t\v' |
| 92 | ## stdout-json: "\n\r\t\u000b\n" |
| 93 | ## N-I dash stdout-json: "-e \n\r\t\u000b\n" |
| 94 | |
| 95 | #### \0 |
| 96 | echo -e 'ab\0cd' |
| 97 | ## stdout-json: "ab\u0000cd\n" |
| 98 | ## N-I dash stdout-json: "-e ab\u0000cd\n" |
| 99 | |
| 100 | #### \c stops processing input |
| 101 | flags='-e' |
| 102 | case $SH in dash) flags='' ;; esac |
| 103 | |
| 104 | echo $flags xy 'ab\cde' 'zzz' |
| 105 | ## stdout-json: "xy ab" |
| 106 | ## N-I mksh stdout-json: "xy abde zzz" |
| 107 | |
| 108 | #### echo -e with hex escape |
| 109 | echo -e 'abcd\x65f' |
| 110 | ## stdout-json: "abcdef\n" |
| 111 | ## N-I dash stdout-json: "-e abcd\\x65f\n" |
| 112 | |
| 113 | #### echo -e with octal escape |
| 114 | flags='-e' |
| 115 | case $SH in dash) flags='' ;; esac |
| 116 | |
| 117 | echo $flags 'abcd\044e' |
| 118 | ## stdout-json: "abcd$e\n" |
| 119 | |
| 120 | #### echo -e with 4 digit unicode escape |
| 121 | flags='-e' |
| 122 | case $SH in dash) flags='' ;; esac |
| 123 | |
| 124 | echo $flags 'abcd\u0065f' |
| 125 | ## STDOUT: |
| 126 | abcdef |
| 127 | ## END |
| 128 | ## N-I dash/ash stdout-json: "abcd\\u0065f\n" |
| 129 | |
| 130 | #### echo -e with 8 digit unicode escape |
| 131 | flags='-e' |
| 132 | case $SH in dash) flags='' ;; esac |
| 133 | |
| 134 | echo $flags 'abcd\U00000065f' |
| 135 | ## STDOUT: |
| 136 | abcdef |
| 137 | ## END |
| 138 | ## N-I dash/ash stdout-json: "abcd\\U00000065f\n" |
| 139 | |
| 140 | #### \0377 is the highest octal byte |
| 141 | echo -en '\03777' | od -A n -t x1 | sed 's/ \+/ /g' |
| 142 | ## stdout-json: " ff 37\n" |
| 143 | ## N-I dash stdout-json: " 2d 65 6e 20 ff 37 0a\n" |
| 144 | |
| 145 | #### \0400 is one more than the highest octal byte |
| 146 | # It is 256 % 256 which gets interpreted as a NUL byte. |
| 147 | echo -en '\04000' | od -A n -t x1 | sed 's/ \+/ /g' |
| 148 | ## stdout-json: " 00 30\n" |
| 149 | ## BUG ash stdout-json: " 20 30 30\n" |
| 150 | ## N-I dash stdout-json: " 2d 65 6e 20 00 30 0a\n" |
| 151 | |
| 152 | #### \0777 is out of range |
| 153 | flags='-en' |
| 154 | case $SH in dash) flags='-n' ;; esac |
| 155 | |
| 156 | echo $flags '\0777' | od -A n -t x1 | sed 's/ \+/ /g' |
| 157 | ## stdout-json: " ff\n" |
| 158 | ## BUG mksh stdout-json: " c3 bf\n" |
| 159 | ## BUG ash stdout-json: " 3f 37\n" |
| 160 | |
| 161 | #### incomplete hex escape |
| 162 | echo -en 'abcd\x6' | od -A n -c | sed 's/ \+/ /g' |
| 163 | ## stdout-json: " a b c d 006\n" |
| 164 | ## N-I dash stdout-json: " - e n a b c d \\ x 6 \\n\n" |
| 165 | |
| 166 | #### \x |
| 167 | # I consider mksh and zsh a bug because \x is not an escape |
| 168 | echo -e '\x' '\xg' | od -A n -c | sed 's/ \+/ /g' |
| 169 | ## stdout-json: " \\ x \\ x g \\n\n" |
| 170 | ## N-I dash stdout-json: " - e \\ x \\ x g \\n\n" |
| 171 | ## BUG mksh/zsh stdout-json: " \\0 \\0 g \\n\n" |
| 172 | |
| 173 | #### incomplete octal escape |
| 174 | flags='-en' |
| 175 | case $SH in dash) flags='-n' ;; esac |
| 176 | |
| 177 | echo $flags 'abcd\04' | od -A n -c | sed 's/ \+/ /g' |
| 178 | ## stdout-json: " a b c d 004\n" |
| 179 | |
| 180 | #### incomplete unicode escape |
| 181 | echo -en 'abcd\u006' | od -A n -c | sed 's/ \+/ /g' |
| 182 | ## stdout-json: " a b c d 006\n" |
| 183 | ## N-I dash stdout-json: " - e n a b c d \\ u 0 0 6 \\n\n" |
| 184 | ## BUG ash stdout-json: " a b c d \\ u 0 0 6\n" |
| 185 | |
| 186 | #### \u6 |
| 187 | flags='-en' |
| 188 | case $SH in dash) flags='-n' ;; esac |
| 189 | |
| 190 | echo $flags '\u6' | od -A n -c | sed 's/ \+/ /g' |
| 191 | ## stdout-json: " 006\n" |
| 192 | ## N-I dash/ash stdout-json: " \\ u 6\n" |
| 193 | |
| 194 | #### \0 \1 \8 |
| 195 | # \0 is special, but \1 isn't in bash |
| 196 | # \1 is special in dash! geez |
| 197 | flags='-en' |
| 198 | case $SH in dash) flags='-n' ;; esac |
| 199 | |
| 200 | echo $flags '\0' '\1' '\8' | od -A n -c | sed 's/ \+/ /g' |
| 201 | ## stdout-json: " \\0 \\ 1 \\ 8\n" |
| 202 | ## BUG dash/ash stdout-json: " \\0 001 \\ 8\n" |
| 203 | |
| 204 | #### Read builtin |
| 205 | # NOTE: there are TABS below |
| 206 | read x <<EOF |
| 207 | A B C D E |
| 208 | FG |
| 209 | EOF |
| 210 | echo "[$x]" |
| 211 | ## stdout: [A B C D E] |
| 212 | ## status: 0 |
| 213 | |
| 214 | #### Read from empty file |
| 215 | echo -n '' > $TMP/empty.txt |
| 216 | read x < $TMP/empty.txt |
| 217 | argv.py "status=$?" "$x" |
| 218 | |
| 219 | # No variable name, behaves the same |
| 220 | read < $TMP/empty.txt |
| 221 | argv.py "status=$?" "$REPLY" |
| 222 | |
| 223 | ## STDOUT: |
| 224 | ['status=1', ''] |
| 225 | ['status=1', ''] |
| 226 | ## END |
| 227 | ## OK dash STDOUT: |
| 228 | ['status=1', ''] |
| 229 | ['status=2', ''] |
| 230 | ## END |
| 231 | ## status: 0 |
| 232 | |
| 233 | #### read /dev/null |
| 234 | read -n 1 </dev/null |
| 235 | echo $? |
| 236 | ## STDOUT: |
| 237 | 1 |
| 238 | ## END |
| 239 | ## OK dash stdout: 2 |
| 240 | |
| 241 | |
| 242 | #### read with zero args |
| 243 | echo | read |
| 244 | echo status=$? |
| 245 | ## STDOUT: |
| 246 | status=0 |
| 247 | ## END |
| 248 | ## BUG dash STDOUT: |
| 249 | status=2 |
| 250 | ## END |
| 251 | |
| 252 | #### Read builtin with no newline. |
| 253 | # This is odd because the variable is populated successfully. OSH/Oil might |
| 254 | # need a separate put reading feature that doesn't use IFS. |
| 255 | echo -n ZZZ | { read x; echo $?; echo $x; } |
| 256 | ## stdout-json: "1\nZZZ\n" |
| 257 | ## status: 0 |
| 258 | |
| 259 | #### Read builtin with multiple variables |
| 260 | # NOTE: there are TABS below |
| 261 | read x y z <<EOF |
| 262 | A B C D E |
| 263 | FG |
| 264 | EOF |
| 265 | echo "[$x/$y/$z]" |
| 266 | ## stdout: [A/B/C D E] |
| 267 | ## status: 0 |
| 268 | |
| 269 | #### Read builtin with not enough variables |
| 270 | set -o errexit |
| 271 | set -o nounset # hm this doesn't change it |
| 272 | read x y z <<EOF |
| 273 | A B |
| 274 | EOF |
| 275 | echo /$x/$y/$z/ |
| 276 | ## stdout: /A/B// |
| 277 | ## status: 0 |
| 278 | |
| 279 | #### Read -n (with $REPLY) |
| 280 | echo 12345 > $TMP/readn.txt |
| 281 | read -n 4 x < $TMP/readn.txt |
| 282 | read -n 2 < $TMP/readn.txt # Do it again with no variable |
| 283 | argv.py $x $REPLY |
| 284 | ## stdout: ['1234', '12'] |
| 285 | ## N-I dash/zsh stdout: [] |
| 286 | |
| 287 | #### IFS= read -n (OSH regression: value saved in tempenv) |
| 288 | echo XYZ > "$TMP/readn.txt" |
| 289 | IFS= TMOUT= read -n 1 char < "$TMP/readn.txt" |
| 290 | argv.py "$char" |
| 291 | ## stdout: ['X'] |
| 292 | ## N-I dash/zsh stdout: [''] |
| 293 | |
| 294 | #### Read uses $REPLY (without -n) |
| 295 | echo 123 > $TMP/readreply.txt |
| 296 | read < $TMP/readreply.txt |
| 297 | echo $REPLY |
| 298 | ## stdout: 123 |
| 299 | ## N-I dash stdout: |
| 300 | |
| 301 | #### read -r ignores backslashes |
| 302 | echo 'one\ two' > $TMP/readr.txt |
| 303 | read escaped < $TMP/readr.txt |
| 304 | read -r raw < $TMP/readr.txt |
| 305 | argv.py "$escaped" "$raw" |
| 306 | ## stdout: ['one two', 'one\\ two'] |
| 307 | |
| 308 | #### read -r with other backslash escapes |
| 309 | echo 'one\ two\x65three' > $TMP/readr.txt |
| 310 | read escaped < $TMP/readr.txt |
| 311 | read -r raw < $TMP/readr.txt |
| 312 | argv.py "$escaped" "$raw" |
| 313 | # mksh respects the hex escapes here, but other shells don't! |
| 314 | ## stdout: ['one twox65three', 'one\\ two\\x65three'] |
| 315 | ## BUG mksh/zsh stdout: ['one twoethree', 'one\\ twoethree'] |
| 316 | |
| 317 | #### read with line continuation reads multiple physical lines |
| 318 | # NOTE: osh failing because of file descriptor issue. stdin has to be closed! |
| 319 | tmp=$TMP/$(basename $SH)-readr.txt |
| 320 | echo -e 'one\\\ntwo\n' > $tmp |
| 321 | read escaped < $tmp |
| 322 | read -r raw < $tmp |
| 323 | argv.py "$escaped" "$raw" |
| 324 | ## stdout: ['onetwo', 'one\\'] |
| 325 | ## N-I dash stdout: ['-e onetwo', '-e one\\'] |
| 326 | |
| 327 | #### read multiple vars spanning many lines |
| 328 | read x y << 'EOF' |
| 329 | one-\ |
| 330 | two three-\ |
| 331 | four five-\ |
| 332 | six |
| 333 | EOF |
| 334 | argv.py "$x" "$y" "$z" |
| 335 | ## stdout: ['one-two', 'three-four five-six', ''] |
| 336 | |
| 337 | #### read -r with \n |
| 338 | echo '\nline' > $TMP/readr.txt |
| 339 | read escaped < $TMP/readr.txt |
| 340 | read -r raw < $TMP/readr.txt |
| 341 | argv.py "$escaped" "$raw" |
| 342 | # dash/mksh/zsh are bugs because at least the raw mode should let you read a |
| 343 | # literal \n. |
| 344 | ## stdout: ['nline', '\\nline'] |
| 345 | ## BUG dash/mksh/zsh stdout: ['', ''] |
| 346 | |
| 347 | #### read -s from pipe, not a terminal |
| 348 | case $SH in (dash|zsh) exit ;; esac |
| 349 | |
| 350 | # It's hard to really test this because it requires a terminal. We hit a |
| 351 | # different code path when reading through a pipe. There can be bugs there |
| 352 | # too! |
| 353 | |
| 354 | echo foo | { read -s; echo $REPLY; } |
| 355 | echo bar | { read -n 2 -s; echo $REPLY; } |
| 356 | |
| 357 | # Hm no exit 1 here? Weird |
| 358 | echo b | { read -n 2 -s; echo $?; echo $REPLY; } |
| 359 | ## STDOUT: |
| 360 | foo |
| 361 | ba |
| 362 | 0 |
| 363 | b |
| 364 | ## END |
| 365 | ## N-I dash/zsh stdout-json: "" |
| 366 | |
| 367 | #### Read with IFS=$'\n' |
| 368 | # The leading spaces are stripped if they appear in IFS. |
| 369 | IFS=$(echo -e '\n') |
| 370 | read var <<EOF |
| 371 | a b c |
| 372 | d e f |
| 373 | EOF |
| 374 | echo "[$var]" |
| 375 | ## stdout: [ a b c] |
| 376 | ## N-I dash stdout: [a b c] |
| 377 | |
| 378 | #### Read multiple lines with IFS=: |
| 379 | # The leading spaces are stripped if they appear in IFS. |
| 380 | # IFS chars are escaped with :. |
| 381 | tmp=$TMP/$(basename $SH)-read-ifs.txt |
| 382 | IFS=: |
| 383 | cat >$tmp <<'EOF' |
| 384 | \\a :b\: c:d\ |
| 385 | e |
| 386 | EOF |
| 387 | read a b c d < $tmp |
| 388 | # Use printf because echo in dash/mksh interprets escapes, while it doesn't in |
| 389 | # bash. |
| 390 | printf "%s\n" "[$a|$b|$c|$d]" |
| 391 | ## stdout: [ \a |b: c|d e|] |
| 392 | |
| 393 | #### Read with IFS='' |
| 394 | IFS='' |
| 395 | read x y <<EOF |
| 396 | a b c d |
| 397 | EOF |
| 398 | echo "[$x|$y]" |
| 399 | ## stdout: [ a b c d|] |
| 400 | |
| 401 | #### Read should not respect C escapes. |
| 402 | # bash doesn't respect these, but other shells do. Gah! I think bash |
| 403 | # behavior makes more sense. It only escapes IFS. |
| 404 | echo '\a \b \c \d \e \f \g \h \x65 \145 \i' > $TMP/read-c.txt |
| 405 | read line < $TMP/read-c.txt |
| 406 | echo $line |
| 407 | ## stdout-json: "a b c d e f g h x65 145 i\n" |
| 408 | ## BUG ash stdout-json: "abcdefghx65 145 i\n" |
| 409 | ## BUG dash/zsh stdout-json: "\u0007 \u0008\n" |
| 410 | ## BUG mksh stdout-json: "\u0007 \u0008 d \u001b \u000c g h e 145 i\n" |
| 411 | |
| 412 | #### Read builtin uses dynamic scope |
| 413 | f() { |
| 414 | read head << EOF |
| 415 | ref: refs/heads/dev/andy |
| 416 | EOF |
| 417 | } |
| 418 | f |
| 419 | echo $head |
| 420 | ## STDOUT: |
| 421 | ref: refs/heads/dev/andy |
| 422 | ## END |
| 423 | |
| 424 | #### read -a reads into array |
| 425 | |
| 426 | # read -a is used in bash-completion |
| 427 | # none of these shells implement it |
| 428 | case $SH in |
| 429 | *mksh|*dash|*zsh|*/ash) |
| 430 | exit 2; |
| 431 | ;; |
| 432 | esac |
| 433 | |
| 434 | read -a myarray <<'EOF' |
| 435 | a b c\ d |
| 436 | EOF |
| 437 | argv.py "${myarray[@]}" |
| 438 | |
| 439 | # arguments are ignored here |
| 440 | read -r -a array2 extra arguments <<'EOF' |
| 441 | a b c\ d |
| 442 | EOF |
| 443 | argv.py "${array2[@]}" |
| 444 | argv.py "${extra[@]}" |
| 445 | argv.py "${arguments[@]}" |
| 446 | ## status: 0 |
| 447 | ## STDOUT: |
| 448 | ['a', 'b', 'c d'] |
| 449 | ['a', 'b', 'c\\', 'd'] |
| 450 | [] |
| 451 | [] |
| 452 | ## END |
| 453 | ## N-I dash/mksh/zsh/ash status: 2 |
| 454 | ## N-I dash/mksh/zsh/ash stdout-json: "" |
| 455 | |
| 456 | #### read -n with invalid arg |
| 457 | read -n not_a_number |
| 458 | echo status=$? |
| 459 | ## stdout: status=2 |
| 460 | ## OK bash stdout: status=1 |
| 461 | ## N-I zsh stdout-json: "" |
| 462 | |
| 463 | #### read returns correct number of bytes without EOF |
| 464 | case $SH in |
| 465 | *bash|*osh) FLAG=n ;; |
| 466 | *mksh) FLAG=N ;; |
| 467 | *) exit ;; # other shells don't implement it, or hang |
| 468 | esac |
| 469 | |
| 470 | i=0 |
| 471 | while true; do |
| 472 | echo -n x |
| 473 | |
| 474 | (( i++ )) |
| 475 | |
| 476 | # TODO: Why does OSH hang without this test? Other shells are fine. I can't |
| 477 | # reproduce outside of sh_spec.py. |
| 478 | if test $i = 100; then |
| 479 | break |
| 480 | #true |
| 481 | fi |
| 482 | done | { read -$FLAG 3; echo $REPLY; } |
| 483 | |
| 484 | ## status: 0 |
| 485 | ## stdout: xxx |
| 486 | ## N-I dash/ash stdout-json: "" |
| 487 | |
| 488 | # zsh appears to hang with -k |
| 489 | ## N-I zsh stdout-json: "" |
| 490 | |
| 491 | #### read -d : (colon-separated records) |
| 492 | printf a,b,c:d,e,f:g,h,i | { |
| 493 | IFS=, |
| 494 | read -d : v1 |
| 495 | echo "v1=$v1" |
| 496 | read -d : v1 v2 |
| 497 | echo "v1=$v1 v2=$v2" |
| 498 | read -d : v1 v2 v3 |
| 499 | echo "v1=$v1 v2=$v2 v3=$v3" |
| 500 | } |
| 501 | ## STDOUT: |
| 502 | v1=a,b,c |
| 503 | v1=d v2=e,f |
| 504 | v1=g v2=h v3=i |
| 505 | ## END |
| 506 | ## N-I dash STDOUT: |
| 507 | v1= |
| 508 | v1= v2= |
| 509 | v1= v2= v3= |
| 510 | ## END |
| 511 | ## BUG ash STDOUT: |
| 512 | v1=a,b,c |
| 513 | v1=d,e,f v2= |
| 514 | v1=g,h,i v2= v3= |
| 515 | ## END |
| 516 | |
| 517 | #### read -d '' (null-separated records) |
| 518 | printf 'a,b,c\0d,e,f\0g,h,i' | { |
| 519 | IFS=, |
| 520 | read -d '' v1 |
| 521 | echo "v1=$v1" |
| 522 | read -d '' v1 v2 |
| 523 | echo "v1=$v1 v2=$v2" |
| 524 | read -d '' v1 v2 v3 |
| 525 | echo "v1=$v1 v2=$v2 v3=$v3" |
| 526 | } |
| 527 | ## STDOUT: |
| 528 | v1=a,b,c |
| 529 | v1=d v2=e,f |
| 530 | v1=g v2=h v3=i |
| 531 | ## END |
| 532 | ## N-I dash STDOUT: |
| 533 | v1= |
| 534 | v1= v2= |
| 535 | v1= v2= v3= |
| 536 | ## END |
| 537 | ## BUG ash STDOUT: |
| 538 | v1=a,b,cd,e,fg,h,i |
| 539 | v1= v2= |
| 540 | v1= v2= v3= |
| 541 | ## END |
| 542 | |
| 543 | #### read -rd |
| 544 | read -rd '' var <<EOF |
| 545 | foo |
| 546 | bar |
| 547 | EOF |
| 548 | echo "$var" |
| 549 | ## STDOUT: |
| 550 | foo |
| 551 | bar |
| 552 | ## END |
| 553 | ## N-I dash stdout-json: "\n" |
| 554 | |
| 555 | #### read -d when there's no delimiter |
| 556 | { read -d : part |
| 557 | echo $part $? |
| 558 | read -d : part |
| 559 | echo $part $? |
| 560 | } <<EOF |
| 561 | foo:bar |
| 562 | EOF |
| 563 | ## STDOUT: |
| 564 | foo 0 |
| 565 | bar 1 |
| 566 | ## END |
| 567 | ## N-I dash STDOUT: |
| 568 | 2 |
| 569 | 2 |
| 570 | ## END |
| 571 | |
| 572 | #### read -t 0 tests if input is available |
| 573 | case $SH in (dash|zsh|mksh) exit ;; esac |
| 574 | |
| 575 | # is there input available? |
| 576 | read -t 0 < /dev/null |
| 577 | echo $? |
| 578 | |
| 579 | # floating point |
| 580 | read -t 0.0 < /dev/null |
| 581 | echo $? |
| 582 | |
| 583 | # floating point |
| 584 | echo foo | { read -t 0; echo reply=$REPLY; } |
| 585 | echo $? |
| 586 | |
| 587 | ## STDOUT: |
| 588 | 0 |
| 589 | 0 |
| 590 | reply= |
| 591 | 0 |
| 592 | ## END |
| 593 | ## N-I dash/zsh/mksh stdout-json: "" |
| 594 | |
| 595 | #### read -t 0.5 |
| 596 | case $SH in (dash) exit ;; esac |
| 597 | |
| 598 | read -t 0.5 < /dev/null |
| 599 | echo $? |
| 600 | |
| 601 | ## STDOUT: |
| 602 | 1 |
| 603 | ## END |
| 604 | ## BUG zsh/mksh STDOUT: |
| 605 | 1 |
| 606 | ## END |
| 607 | ## N-I dash stdout-json: "" |
| 608 | |
| 609 | #### read -t -0.5 is invalid |
| 610 | # bash appears to just take the absolute value? |
| 611 | |
| 612 | read -t -0.5 < /dev/null |
| 613 | echo $? |
| 614 | |
| 615 | ## STDOUT: |
| 616 | 2 |
| 617 | ## END |
| 618 | ## BUG bash STDOUT: |
| 619 | 1 |
| 620 | ## END |
| 621 | ## BUG zsh stdout-json: "" |
| 622 | ## BUG zsh status: 1 |
| 623 | |
| 624 | #### read -u |
| 625 | case $SH in (dash|mksh) exit ;; esac |
| 626 | |
| 627 | # file descriptor |
| 628 | read -u 3 3<<EOF |
| 629 | hi |
| 630 | EOF |
| 631 | echo reply=$REPLY |
| 632 | ## STDOUT: |
| 633 | reply=hi |
| 634 | ## END |
| 635 | ## N-I dash/mksh stdout-json: "" |
| 636 | |
| 637 | #### read -u syntax error |
| 638 | read -u -3 |
| 639 | echo status=$? |
| 640 | ## STDOUT: |
| 641 | status=2 |
| 642 | ## END |
| 643 | ## OK bash/zsh STDOUT: |
| 644 | status=1 |
| 645 | ## END |
| 646 | |
| 647 | #### read -N doesn't respect delimiter, while read -n does |
| 648 | case $SH in (dash|zsh|ash) exit ;; esac |
| 649 | |
| 650 | echo foobar | { read -n 5 -d b; echo $REPLY; } |
| 651 | echo foobar | { read -N 5 -d b; echo $REPLY; } |
| 652 | ## STDOUT: |
| 653 | foo |
| 654 | fooba |
| 655 | ## END |
| 656 | ## OK mksh STDOUT: |
| 657 | fooba |
| 658 | fooba |
| 659 | ## END |
| 660 | ## N-I dash/zsh/ash stdout-json: "" |
| 661 | |
| 662 | #### read -p (not fully tested) |
| 663 | |
| 664 | # hm DISABLED if we're not going to the terminal |
| 665 | # so we're only testing that it accepts the flag here |
| 666 | |
| 667 | case $SH in (dash|mksh|zsh) exit ;; esac |
| 668 | |
| 669 | echo hi | { read -p 'P'; echo $REPLY; } |
| 670 | echo hi | { read -p 'P' -n 1; echo $REPLY; } |
| 671 | ## STDOUT: |
| 672 | hi |
| 673 | h |
| 674 | ## END |
| 675 | ## stderr-json: "" |
| 676 | ## N-I dash/mksh/zsh stdout-json: "" |
| 677 | |
| 678 | #### read usage |
| 679 | read -n -1 |
| 680 | echo status=$? |
| 681 | ## STDOUT: |
| 682 | status=2 |
| 683 | ## END |
| 684 | ## OK bash stdout: status=1 |
| 685 | ## BUG mksh stdout-json: "" |
| 686 | # zsh gives a fatal error? seems inconsistent |
| 687 | ## BUG zsh stdout-json: "" |
| 688 | ## BUG zsh status: 1 |
| 689 | |
| 690 | #### read with smooshed args |
| 691 | echo hi | { read -rn1 var; echo var=$var; } |
| 692 | ## STDOUT: |
| 693 | var=h |
| 694 | ## END |
| 695 | ## N-I dash/zsh STDOUT: |
| 696 | var= |
| 697 | ## END |
| 698 | |
| 699 | #### mapfile |
| 700 | type mapfile >/dev/null 2>&1 || exit 0 |
| 701 | printf '%s\n' {1..5..2} | { |
| 702 | mapfile |
| 703 | echo "n=${#MAPFILE[@]}" |
| 704 | printf '[%s]\n' "${MAPFILE[@]}" |
| 705 | } |
| 706 | ## STDOUT: |
| 707 | n=3 |
| 708 | [1 |
| 709 | ] |
| 710 | [3 |
| 711 | ] |
| 712 | [5 |
| 713 | ] |
| 714 | ## END |
| 715 | ## N-I dash/mksh/zsh/ash stdout-json: "" |
| 716 | |
| 717 | #### readarray (synonym for mapfile) |
| 718 | type readarray >/dev/null 2>&1 || exit 0 |
| 719 | printf '%s\n' {1..5..2} | { |
| 720 | readarray |
| 721 | echo "n=${#MAPFILE[@]}" |
| 722 | printf '[%s]\n' "${MAPFILE[@]}" |
| 723 | } |
| 724 | ## STDOUT: |
| 725 | n=3 |
| 726 | [1 |
| 727 | ] |
| 728 | [3 |
| 729 | ] |
| 730 | [5 |
| 731 | ] |
| 732 | ## END |
| 733 | ## N-I dash/mksh/zsh/ash stdout-json: "" |
| 734 | |
| 735 | #### mapfile (array name): arr |
| 736 | type mapfile >/dev/null 2>&1 || exit 0 |
| 737 | printf '%s\n' {1..5..2} | { |
| 738 | mapfile arr |
| 739 | echo "n=${#arr[@]}" |
| 740 | printf '[%s]\n' "${arr[@]}" |
| 741 | } |
| 742 | ## STDOUT: |
| 743 | n=3 |
| 744 | [1 |
| 745 | ] |
| 746 | [3 |
| 747 | ] |
| 748 | [5 |
| 749 | ] |
| 750 | ## END |
| 751 | ## N-I dash/mksh/zsh/ash stdout-json: "" |
| 752 | |
| 753 | #### mapfile (delimiter): -d delim |
| 754 | # Note: Bash-4.4+ |
| 755 | type mapfile >/dev/null 2>&1 || exit 0 |
| 756 | printf '%s:' {1..5..2} | { |
| 757 | mapfile -d : arr |
| 758 | echo "n=${#arr[@]}" |
| 759 | printf '[%s]\n' "${arr[@]}" |
| 760 | } |
| 761 | ## STDOUT: |
| 762 | n=3 |
| 763 | [1:] |
| 764 | [3:] |
| 765 | [5:] |
| 766 | ## END |
| 767 | ## N-I dash/mksh/zsh/ash stdout-json: "" |
| 768 | |
| 769 | #### mapfile (delimiter): -d '' (null-separated) |
| 770 | # Note: Bash-4.4+ |
| 771 | type mapfile >/dev/null 2>&1 || exit 0 |
| 772 | printf '%s\0' {1..5..2} | { |
| 773 | mapfile -d '' arr |
| 774 | echo "n=${#arr[@]}" |
| 775 | printf '[%s]\n' "${arr[@]}" |
| 776 | } |
| 777 | ## STDOUT: |
| 778 | n=3 |
| 779 | [1] |
| 780 | [3] |
| 781 | [5] |
| 782 | ## END |
| 783 | ## N-I dash/mksh/zsh/ash stdout-json: "" |
| 784 | |
| 785 | #### mapfile (truncate delim): -t |
| 786 | type mapfile >/dev/null 2>&1 || exit 0 |
| 787 | printf '%s\n' {1..5..2} | { |
| 788 | mapfile -t arr |
| 789 | echo "n=${#arr[@]}" |
| 790 | printf '[%s]\n' "${arr[@]}" |
| 791 | } |
| 792 | ## STDOUT: |
| 793 | n=3 |
| 794 | [1] |
| 795 | [3] |
| 796 | [5] |
| 797 | ## END |
| 798 | ## N-I dash/mksh/zsh/ash stdout-json: "" |
| 799 | |
| 800 | #### mapfile -t doesn't remove \r |
| 801 | type mapfile >/dev/null 2>&1 || exit 0 |
| 802 | printf '%s\r\n' {1..5..2} | { |
| 803 | mapfile -t arr |
| 804 | argv.py "${arr[@]}" |
| 805 | } |
| 806 | ## STDOUT: |
| 807 | ['1\r', '3\r', '5\r'] |
| 808 | ## END |
| 809 | ## N-I dash/mksh/zsh/ash stdout-json: "" |
| 810 | |
| 811 | #### mapfile (store position): -O start |
| 812 | type mapfile >/dev/null 2>&1 || exit 0 |
| 813 | printf '%s\n' a{0..2} | { |
| 814 | arr=(x y z) |
| 815 | mapfile -O 2 -t arr |
| 816 | echo "n=${#arr[@]}" |
| 817 | printf '[%s]\n' "${arr[@]}" |
| 818 | } |
| 819 | ## STDOUT: |
| 820 | n=5 |
| 821 | [x] |
| 822 | [y] |
| 823 | [a0] |
| 824 | [a1] |
| 825 | [a2] |
| 826 | ## END |
| 827 | ## N-I dash/mksh/zsh/ash stdout-json: "" |
| 828 | |
| 829 | #### mapfile (input range): -s start -n count |
| 830 | type mapfile >/dev/null 2>&1 || exit 0 |
| 831 | printf '%s\n' a{0..10} | { |
| 832 | mapfile -s 5 -n 3 -t arr |
| 833 | echo "n=${#arr[@]}" |
| 834 | printf '[%s]\n' "${arr[@]}" |
| 835 | } |
| 836 | ## STDOUT: |
| 837 | n=3 |
| 838 | [a5] |
| 839 | [a6] |
| 840 | [a7] |
| 841 | ## END |
| 842 | ## N-I dash/mksh/zsh/ash stdout-json: "" |
| 843 | |
| 844 | |
| 845 | |
| 846 | #### read -r -d '' for NUL strings, e.g. find -print0 |
| 847 | |
| 848 | |
| 849 | case $SH in (dash|zsh|mksh) exit ;; esac # NOT IMPLEMENTED |
| 850 | |
| 851 | mkdir -p read0 |
| 852 | cd read0 |
| 853 | rm -f * |
| 854 | |
| 855 | touch a\\b\\c\\d # -r is necessary! |
| 856 | |
| 857 | find . -type f -a -print0 | { read -r -d ''; echo "[$REPLY]"; } |
| 858 | |
| 859 | ## STDOUT: |
| 860 | [./a\b\c\d] |
| 861 | ## END |
| 862 | ## N-I dash/zsh/mksh STDOUT: |
| 863 | ## END |
| 864 |