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    Contents of /trunk/mkinitrd-magellan/busybox/docs/posix_conformance.txt

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    Revision 984 - (show annotations) (download)
    Sun May 30 11:32:42 2010 UTC (13 years, 11 months ago) by niro
    File MIME type: text/plain
    File size: 25535 byte(s) 
    -updated to busybox-1.16.1 and enabled blkid/uuid support in default config
    1
    2 Busybox POSIX conformance table
    3
    4 See POSIX documentation (1003.1-2008) here:
    5 http://www.opengroup.org/onlinepubs/9699919799/
    6 And the complete list of all utilities that POSIX covers:
    7 http://www.opengroup.org/onlinepubs/9699919799/idx/utilities.html
    8
    9 This listing is a work in progress, and currently only covers
    10 tool options (not operands, environment variables, return codes, etc..).
    11 For each option it is set if it (a) exists and (b) compliant to POSIX 2008.
    12 Some options exist but there is no value in the 'compliant' column: that
    13 means no one has yet bothered to make sure that the option does what it is
    14 required to do.
    15
    16 -----------------------------------------------
    17
    18 POSIX Tools supported only as shell built-ins (ash shell):
    19 alias, bg, cd, fg, getopts, hash, jobs, read, type, umask, ulimit,
    20 unalias, wait, write
    21
    22 POSIX Tools not supported:
    23 asa, at, batch, bc, c99, command, compress, csplit, ex, fc, file,
    24 gencat, getconf, iconv, join, link, locale, localedef, lp, m4,
    25 mailx, newgrp, nl, paste, pathchk, pax, pr, qalter, qdel, qhold, qmove,
    26 qmsg, qrerun, qrls, qselect, qsig, qstat, qsub, tabs, talk, tput,
    27 tsort, unlink, uucp, uustat, uux
    28
    29 POSIX Tools not supported (DEVELOPMENT):
    30 admin, cflow, ctags, cxref, delta, fort77, get, lex, make, nm, prs, rmdel,
    31 sact, sccs, strip, unget, val, what, yacc
    32
    33
    34 POSIX Tools supported:
    35
    36 Note: echo, printf, kill, pwd documented here as stand-alone applets,
    37 not as ash built-ins.
    38
    39
    40 ar POSIX options ********************* Failed to recognize zip & tar (did not compare to regular ar)
    41 option | exists | compliant | remarks
    42 -C | no | no |
    43 -T | no | no |
    44 -a | no | no |
    45 -b | no | no |
    46 -c | no | no |
    47 -d | no | no |
    48 -i | no | no |
    49 -m | no | no |
    50 -p | yes | |
    51 -q | no | no |
    52 -r | no | no |
    53 -s | no | no |
    54 -t | yes | |
    55 -u | no | no |
    56 -v | yes | |
    57 -x | yes | |
    58 ar Busybox specific options:
    59 -o
    60
    61 awk POSIX options
    62 option | exists | compliant | remarks
    63 -F ERE | yes | |
    64 -f progfile | yes | |
    65 -v assignment | yes | |
    66 awk Busybox specific options: None
    67
    68 basename POSIX options: None
    69 basename Busybox specific options: None
    70
    71 cal POSIX options: None
    72 cal Busybox specific options:
    73 -y, -j
    74
    75 cat POSIX options
    76 option | exists | compliant | remarks
    77 -u | yes | no | option is ignored
    78 cat Busybox specific options: None
    79
    80 chgrp POSIX options
    81 option | exists | compliant | remarks
    82 -H | yes | |
    83 -L | yes | |
    84 -P | yes | |
    85 -R | yes | |
    86 -h | yes | |
    87 chgrp Busybox specific options:
    88 -f, -c, -v
    89
    90 chmod POSIX options
    91 option | exists | compliant | remarks
    92 -R | yes | yes |
    93 chmod Busybox specific options:
    94 -f, -v, -c
    95
    96 chown POSIX options *********************************************
    97 option | exists | compliant | remarks
    98 -H | yes | | It seems like all flags are supported (according to printout), but
    99 -L | yes | | it fails to work on my machine
    100 -P | yes | |
    101 -R | yes | |
    102 -h | yes | |
    103 chown Busybox specific options:
    104 -f, -c, -v
    105
    106 cksum POSIX options: None
    107 cksum Busybox specific options: None
    108
    109 cmp POSIX options
    110 option | exists | compliant | remarks
    111 -l | yes | yes |
    112 -s | yes | yes |
    113 cmp Busybox specific options:
    114
    115
    116 comm POSIX options
    117 option | exists | compliant | remarks
    118 -1 | yes | yes |
    119 -2 | yes | yes |
    120 -3 | yes | yes |
    121 comm Busybox specific options: None
    122
    123 cp POSIX options
    124 option | exists | compliant | remarks
    125 -H | yes | yes |
    126 -L | yes | yes |
    127 -P | yes | yes |
    128 -R | yes | yes |
    129 -f | yes | yes |
    130 -i | yes | yes |
    131 -p | yes | yes |
    132 cp Busybox specific options:
    133 -d, -a, -s, -c, -r, -l
    134
    135 crontab POSIX options
    136 option | exists | compliant | remarks
    137 -e | yes | |
    138 -l | yes | |
    139 -r | yes | |
    140 crontab Busybox specific options:
    141 -u, -c
    142
    143 cut POSIX options
    144 option | exists | compliant | remarks
    145 -b list | yes | yes |
    146 -c list | yes | yes |
    147 -d delim | yes | yes |
    148 -f list | yes | yes |
    149 -n | yes | yes |
    150 -s | yes | yes |
    151 cut Busybox specific options: None
    152
    153 date POSIX options
    154 option | exists | compliant | remarks
    155 -u | yes | yes |
    156 date Busybox specific options:
    157 -I[SPEC], -d TIME, -r FILE, -R, -D FMT
    158
    159 dd POSIX options:
    160 option | exists | compliant | remarks
    161 if | yes | |
    162 of | yes | |
    163 ibs | yes | |
    164 obs | yes | |
    165 bs | yes | |
    166 cbs | no | no |
    167 skip | yes | |
    168 seek | yes | |
    169 count | yes | |
    170 conv=ascii | no | no |
    171 conv=ebcdic | no | no |
    172 conv=ibm | no | no |
    173 conv=block | no | no |
    174 conv=unblock | no | no |
    175 conv=lcase | no | no |
    176 conv=ucase | no | no |
    177 conv=swap | no | no |
    178 conv=noerror | yes | |
    179 conv=notrunc | yes | |
    180 conv=sync | yes | |
    181 dd Busybox specific options:
    182 conv=fsync
    183
    184 df POSIX options
    185 option | exists | compliant | remarks
    186 -P | yes | yes |
    187 -k | yes | yes |
    188 -t | no | no |
    189 df Busybox specific options:
    190 -a, -m, -B SIZE, -i, -h
    191 Remark:
    192 - It seems that GNU df does not round percents up in its output (thus its results are a bit different)
    193
    194 diff POSIX options
    195 option | exists | compliant | remarks
    196 -C n | no | no |
    197 -U n | yes | |
    198 -b | yes | |
    199 -c | no | no |
    200 -e | no | no |
    201 -f | no | no |
    202 -r | yes | |
    203 -u | no | no |
    204 diff Busybox specific options:
    205 -d, -a, -s, -t, -L, -N, -i, -T, -w, -q, -S
    206
    207 dirname POSIX options: None
    208 dirname Busybox specific options: None
    209
    210 du POSIX options
    211 option | exists | compliant | remarks
    212 -H | yes | |
    213 -L | yes | |
    214 -a | yes | |
    215 -k | yes | |
    216 -s | yes | |
    217 -x | yes | |
    218 du Busybox specific options:
    219 -c, -m, -h, -d N, -l
    220
    221
    222 echo POSIX options: None
    223 option | exists | compliant | remarks
    224 -n | yes | yes | The result of -n is "implementation-defined"
    225 echo Busybox specific options:
    226 -e, -E
    227
    228 ed POSIX options
    229 option | exists | compliant | remarks
    230 -p string | no | no |
    231 -s | no | no |
    232 ed Busybox specific options: None
    233
    234 env POSIX options
    235 option | exists | compliant | remarks
    236 -i | no | no |
    237 env Busybox specific options:
    238 -u, -, -i
    239
    240 expand POSIX options
    241 option | exists | compliant | remarks
    242 -t tablist | yes | yes |
    243 expand Busybox specific options:
    244 --tabs=N, -i, --initial
    245
    246 expr POSIX operations:
    247 option | exists | compliant | remarks
    248 | | yes | yes |
    249 & | yes | yes |
    250 = | yes | yes |
    251 > | yes | yes |
    252 >= | yes | yes |
    253 <= | yes | yes |
    254 < | yes | yes |
    255 != | yes | yes |
    256 + | yes | yes |
    257 - | yes | yes |
    258 * | yes | yes |
    259 / | yes | yes |
    260 % | yes | yes |
    261 : | yes | yes |
    262 (expr) | yes | yes |
    263 integer | yes | yes |
    264 string | yes | yes |
    265 expr Busybox specific operations:
    266 match, substr, index, length, quote
    267
    268 false POSIX options: None
    269 false Busybox specific options: None
    270
    271 find POSIX options
    272 option | exists | compliant | remarks
    273 -H | no | no |
    274 -L | no | no |
    275 find Busybox specific options:
    276 -group NAME, -mtime DAYS, -print, -maxdepth N, -exec CMD ARG ;, -newer FILE, -context, -iname PATTERN, -follow, -depth, -xdev, -inum N, -type X, -print0, -mindepth N, -mmin MINS, -regex PATTERN, -prune, -path PATTERN, -user NAME, -delete, -perm NNN, -name PATTERN, -size N[bck]
    277
    278 fold POSIX options
    279 option | exists | compliant | remarks
    280 -b | yes | yes |
    281 -s | yes | yes |
    282 -w width | yes | yes |
    283 fold Busybox specific options: None
    284
    285 fuser POSIX options
    286 option | exists | compliant | remarks
    287 -c | no | no |
    288 -f | no | no |
    289 -u | no | no |
    290 fuser Busybox specific options:
    291 -m, -k, -4, -SIGNAL, -6, -s
    292
    293 grep POSIX options
    294 option | exists | compliant | remarks
    295 -E | yes | |
    296 -F | yes | |
    297 -c | yes | |
    298 -e pattern_list | yes | |
    299 -f pattern_file | yes | |
    300 -i | yes | |
    301 -l | yes | |
    302 -n | yes | |
    303 -q | yes | |
    304 -s | yes | |
    305 -v | yes | |
    306 -x | no | no |
    307 grep Busybox specific options:
    308 -A, -C, -B, -L, -H, -o, -h, -w, -r, -z, -m MAX
    309
    310 head POSIX options
    311 option | exists | compliant | remarks
    312 -n number | yes | yes |
    313 head Busybox specific options:
    314 -v, -c NUM, -q
    315
    316 id POSIX options
    317 option | exists | compliant | remarks
    318 -G | yes | yes |
    319 -g | yes | yes |
    320 -n | yes | yes |
    321 -r | yes | yes |
    322 -u | yes | yes |
    323 id Busybox specific options:
    324 -Z
    325
    326 ipcrm POSIX options
    327 option | exists | compliant | remarks
    328 -M shmkey | no | no |
    329 -Q msgkey | no | no |
    330 -S semkey | no | no |
    331 -m shmid | no | no |
    332 -q msgid | no | no |
    333 -s semid | no | no |
    334 ipcrm Busybox specific options:
    335 -mM, -qQ, -sS
    336
    337 ipcs POSIX options
    338 option | exists | compliant | remarks
    339 -a | yes | |
    340 -b | no | no |
    341 -c | yes | |
    342 -m | yes | |
    343 -o | no | no |
    344 -p | yes | |
    345 -q | yes | |
    346 -s | yes | |
    347 -t | yes | |
    348 ipcs Busybox specific options:
    349 -l, -i, -u
    350
    351 kill POSIX options
    352 option | exists | compliant | remarks
    353 -l | yes | yes |
    354 -s signal_name | yes | yes |
    355 -signal_name | yes | yes |
    356 -signal_number | yes | yes |
    357 kill Busybox specific options:
    358 -q, -o
    359
    360 ln POSIX options
    361 option | exists | compliant | remarks
    362 -L | no | no |
    363 -P | no | no |
    364 -f | yes | yes |
    365 -s | yes | yes |
    366 ln Busybox specific options:
    367 -S suf, -n, -b
    368
    369 logger POSIX options: None
    370 logger Busybox specific options:
    371 -p PRIO, -t TAG, -s
    372
    373 logname POSIX options: None
    374 logname Busybox specific options: None
    375
    376 ls POSIX options
    377 option | exists | compliant | remarks
    378 -1 | yes | yes |
    379 -A | yes | yes |
    380 -C | yes | yes |
    381 -F | yes | yes | And more: '=' for sockets (not defined by POSIX)
    382 -H | no | no |
    383 -L | yes | yes | But coloring may be wrong (at least POSIX does not require correct colors :) )
    384 -R | yes | yes |
    385 -S | yes | yes |
    386 -a | yes | yes |
    387 -c | yes | no | Sorts output with '-l' (should only show ctime with '-l', and sort only with '-t')
    388 -d | yes | no | When invoked together with '-L' should read symbolic links, and doesn't
    389 -f | no | no |
    390 -g | no | no |
    391 -i | yes | yes |
    392 -k | yes | no | Does something completely unrelated! (Lists security context instead of specifying block size)
    393 -l | yes | yes |
    394 -m | no | no |
    395 -n | yes | no | Works correctly only together with '-l' (but POSIX requires '-l' to be implicitly assumed)
    396 -o | no | no |
    397 -p | yes | yes |
    398 -q | no | no |
    399 -r | yes | yes |
    400 -s | yes | yes |
    401 -t | yes | yes |
    402 -u | yes | yes |
    403 -x | yes | yes |
    404 ls Busybox specific options:
    405 --color, -T NUM, -K, -X, -Z, -e, -h, -v, -w NUM
    406
    407 man POSIX options
    408 option | exists | compliant | remarks
    409 -k | no | no |
    410 man Busybox specific options:
    411 -a Display all pages
    412
    413
    414 mesg POSIX options: None
    415 mesg Busybox specific options: None
    416
    417 mkdir POSIX options
    418 option | exists | compliant | remarks
    419 -m mode | yes | yes |
    420 -p | yes | yes |
    421 mkdir Busybox specific options:
    422 -Z
    423
    424 mkfifo POSIX options
    425 option | exists | compliant | remarks
    426 -m mode | yes | yes |
    427 mkfifo Busybox specific options:
    428 -Z
    429
    430 more POSIX options
    431 option | exists | compliant | remarks
    432 -c | no | no |
    433 -e | no | no |
    434 -i | no | no |
    435 -n number | no | no |
    436 -p command | no | no |
    437 -s | no | no |
    438 -t tagstring | no | no |
    439 -u | no | no |
    440 more Busybox specific options: None
    441
    442 mv POSIX options
    443 option | exists | compliant | remarks
    444 -f | yes | yes |
    445 -i | yes | yes |
    446 mv Busybox specific options: None
    447
    448 nice POSIX options
    449 option | exists | compliant | remarks
    450 -n increment | yes | yes |
    451 nice Busybox specific options: None
    452
    453 nohup POSIX options: None
    454 nohup Busybox specific options: None
    455
    456 od POSIX options
    457 option | exists | compliant | remarks
    458 -A address_base | no | no |
    459 -N count | no | no |
    460 -b | no | no |
    461 -c | no | no |
    462 -d | no | no |
    463 -j skip | no | no |
    464 -o | no | no |
    465 -s | no | no |
    466 -t type_string | no | no |
    467 -v | no | no |
    468 -x | no | no |
    469 od Busybox specific options: None
    470
    471 patch POSIX options
    472 option | exists | compliant | remarks
    473 -D define | no | no |
    474 -N | no | no |
    475 -R | yes | yes |
    476 -b | no | no |
    477 -c | no | no |
    478 -d dir | no | no |
    479 -e | no | no |
    480 -i patchfile | yes | yes |
    481 -l | no | no |
    482 -n | no | no |
    483 -o outfile | no | no |
    484 -p num | yes | yes |
    485 -r rejectfile | no | no |
    486 -u | no | no |
    487 patch Busybox specific options: None
    488
    489 printf POSIX options: None
    490 printf Busybox specific options: None
    491
    492 ps POSIX options
    493 option | exists | compliant | remarks
    494 -A | no | no |
    495 -G grouplist | no | no |
    496 -U userlist | no | no |
    497 -a | no | no |
    498 -d | no | no |
    499 -e | no | no |
    500 -f | no | no |
    501 -g grouplist | no | no |
    502 -l | no | no |
    503 -n namelist | no | no |
    504 -o format | yes | no | not supported: ruser, group, rgroup, pcpu
    505 -p proclist | no | no |
    506 -t termlist | no | no |
    507 -u userlist | no | no |
    508 ps Busybox specific options: None
    509
    510 pwd POSIX options
    511 option | exists | compliant | remarks
    512 -L | no | no |
    513 -P | no | no |
    514 pwd Busybox specific options: None
    515
    516 renice POSIX options
    517 option | exists | compliant | remarks
    518 -g | yes | yes |
    519 -n increment | yes | yes | Note POSIX allows only to run with this option (busybox also allows to run without '-n' and set niceness directly)
    520 -p | yes | yes |
    521 -u | yes | yes |
    522 renice Busybox specific options: None
    523
    524 rm POSIX options
    525 option | exists | compliant | remarks
    526 -R | yes | yes |
    527 -f | yes | yes |
    528 -i | yes | yes |
    529 -r | yes | yes |
    530 rm Busybox specific options: None
    531
    532 rmdir POSIX options
    533 option | exists | compliant | remarks
    534 -p | yes | yes |
    535 rmdir Busybox specific options:
    536 --parents
    537
    538 sed POSIX options
    539 option | exists | compliant | remarks
    540 -e script | yes | |
    541 -f script_file | yes | |
    542 -n | yes | |
    543 sed Busybox specific options:
    544 -i, -r
    545
    546 sh POSIX options
    547 option | exists | compliant | remarks
    548 -c | no | no |
    549 -i | no | no |
    550 -s | no | no |
    551 sh Busybox specific options: None
    552
    553 sleep POSIX options: None
    554 sleep Busybox specific options: None
    555
    556 sort POSIX options
    557 option | exists | compliant | remarks
    558 -C | no | no |
    559 -b | yes | yes |
    560 -c | yes | yes |
    561 -d | yes | yes |
    562 -f | yes | yes |
    563 -i | yes | yes | But is not like GNU sort, which isn't! (try to sort 'a\nA\nB\nb' with and without -f)
    564 -k keydef | yes | |
    565 -m | no | no |
    566 -n | yes | yes |
    567 -o output | yes | yes |
    568 -r | yes | yes |
    569 -t char | yes | |
    570 -u | yes | yes |
    571 sort Busybox specific options:
    572 -mST, -g, -M, -s, -z
    573
    574 split POSIX options
    575 option | exists | compliant | remarks
    576 -a suffix_length | yes | yes |
    577 -b n | yes | yes |
    578 -b nk | yes | yes |
    579 -b nm | yes | yes |
    580 -l line_count | yes | yes |
    581 split Busybox specific options: None
    582
    583 strings POSIX options
    584 option | exists | compliant | remarks
    585 -a | yes | yes |
    586 -n number | yes | yes |
    587 -t format | no | no |
    588 strings Busybox specific options:
    589 -o, -f
    590
    591 stty POSIX options
    592 option | exists | compliant | remarks
    593 -a | yes | yes |
    594 -g | yes | yes |
    595 stty Busybox specific options:
    596 -F DEVICE
    597
    598 tail POSIX options
    599 option | exists | compliant | remarks
    600 -c number | yes | yes |
    601 -f | yes | yes |
    602 -n number | yes | yes |
    603 tail Busybox specific options:
    604 -v, -q, -s SEC
    605
    606 tee POSIX options
    607 option | exists | compliant | remarks
    608 -a | yes | yes |
    609 -i | yes | yes |
    610 tee Busybox specific options: None
    611
    612 test POSIX options: None
    613 test Busybox specific options: None
    614
    615 time POSIX options
    616 option | exists | compliant | remarks
    617 -p | no | no |
    618 time Busybox specific options:
    619 -v
    620
    621 touch POSIX options
    622 option | exists | compliant | remarks
    623 -a | no | no |
    624 -c | yes | yes |
    625 -d date_time | no | no |
    626 -m | no | no |
    627 -r ref_file | no | no |
    628 -t time | no | no |
    629 touch Busybox specific options: None
    630
    631 tr POSIX options
    632 option | exists | compliant | remarks
    633 -C | no | no |
    634 -c | yes | yes |
    635 -d | yes | yes |
    636 -s | yes | yes |
    637 tr Busybox specific options: None
    638
    639 true POSIX options: None
    640 true Busybox specific options: None
    641
    642 tty POSIX options: None
    643 tty Busybox specific options:
    644 -s
    645
    646 uname POSIX options
    647 option | exists | compliant | remarks
    648 -a | yes | yes |
    649 -m | yes | yes |
    650 -n | yes | yes |
    651 -r | yes | yes |
    652 -s | yes | yes |
    653 -v | yes | yes |
    654 uname Busybox specific options:
    655 -p
    656
    657 uncompress POSIX options
    658 option | exists | compliant | remarks
    659 -c | yes | yes |
    660 -f | yes | yes |
    661 -v | no | no |
    662 uncompress Busybox specific options: None
    663
    664 unexpand POSIX options
    665 option | exists | compliant | remarks
    666 -a | yes | no | POSIX requires converting two or more spaces to tabs, busybox converts one or more spaces
    667 -t tablist | yes | yes |
    668 unexpand Busybox specific options:
    669 --tabs=N, -f, --first-only, --all
    670
    671 uniq POSIX options
    672 option | exists | compliant | remarks
    673 -c | yes | yes |
    674 -d | yes | yes |
    675 -f fields | yes | yes |
    676 -s chars | yes | yes |
    677 -u | yes | yes |
    678 uniq Busybox specific options:
    679 -w N
    680
    681 uudecode POSIX options
    682 option | exists | compliant | remarks
    683 -o outfile | no | no |
    684 uudecode Busybox specific options: None
    685
    686 uuencode POSIX options
    687 option | exists | compliant | remarks
    688 -m | yes | yes |
    689 uuencode Busybox specific options: None
    690
    691 vi POSIX options
    692 option | exists | compliant | remarks
    693 -R | yes | |
    694 -c command | yes | |
    695 -r | no | no |
    696 -t tagstring | no | no |
    697 -w size | no | no |
    698 vi Busybox specific options:
    699 -H
    700
    701 wc POSIX options
    702 option | exists | compliant | remarks
    703 -c | yes | yes |
    704 -l | yes | yes |
    705 -m | no | no |
    706 -w | yes | yes |
    707 wc Busybox specific options:
    708 -L
    709
    710 who POSIX options
    711 option | exists | compliant | remarks
    712 -H | no | no |
    713 -T | no | no |
    714 -a | yes | no | just shows all
    715 -b | no | no |
    716 -d | no | no |
    717 -l | no | no |
    718 -m | no | no |
    719 -p | no | no |
    720 -q | no | no |
    721 -r | no | no |
    722 -s | no | no |
    723 -t | no | no |
    724 -u | no | no |
    725 who Busybox specific options: None
    726
    727 xargs POSIX options
    728 option | exists | compliant | remarks
    729 -E eofstr | no | no |
    730 -I replstr | no | no |
    731 -L number | no | no |
    732 -n number | yes | yes |
    733 -p | yes | yes |
    734 -s size | yes | yes |
    735 -t | yes | yes |
    736 -x | yes | yes |
    737 xargs Busybox specific options:
    738 -e[STR], -0, -r
    739
    740 zcat POSIX options: None
    741 zcat Busybox specific options: None
    742