Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > gnu.bash.bug > #16582
| Path | csiph.com!xmission!news.snarked.org!news.linkpendium.com!news.linkpendium.com!panix!usenet.stanford.edu!not-for-mail |
|---|---|
| From | Chet Ramey <chet.ramey@case.edu> |
| Newsgroups | gnu.bash.bug |
| Subject | Re: Assignment-like word shouldn't be subjected to tilde expansion in POSIX mode |
| Date | Sun, 19 Jul 2020 15:21:07 -0400 |
| Organization | ITS, Case Western Reserve University |
| Lines | 23 |
| Approved | bug-bash@gnu.org |
| Message-ID | <mailman.143.1595186476.24492.bug-bash@gnu.org> (permalink) |
| References | <CAH7i3LqG=mnoiSbetxVdg3wqso5orGgMqQk70-UfJ=wcdf6uLQ@mail.gmail.com> <8ddc4816-f85e-97b3-5c51-9b55acdcaca5@case.edu> <CAH7i3LpXfj3p5tXS_4S_dxdvdLG_tNyBa-4bU=z0Xih1=Tr7OA@mail.gmail.com> <5f066ef0-1fed-ad5b-d564-490268d32427@case.edu> |
| Reply-To | chet.ramey@case.edu |
| NNTP-Posting-Host | lists.gnu.org |
| Mime-Version | 1.0 |
| Content-Type | text/plain; charset=utf-8 |
| Content-Transfer-Encoding | 8bit |
| X-Trace | usenet.stanford.edu 1595186476 12811 209.51.188.17 (19 Jul 2020 19:21:16 GMT) |
| X-Complaints-To | action@cs.stanford.edu |
| Cc | chet.ramey@case.edu, "bug-bash@gnu.org" <bug-bash@gnu.org> |
| To | Oğuz <oguzismailuysal@gmail.com> |
| Envelope-to | bug-bash@gnu.org |
| DKIM-Signature | v=1; a=rsa-sha256; c=relaxed/relaxed; d=case.edu; s=smtp-primary; t=1595186472; bh=UVoexOVZ6ZLJXyzivxmvTixkwoUW0/B3fKOoSo3UAas=; h=Reply-To:Cc:Subject:To:References:From:Message-ID:Date: MIME-Version:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=dLu4eFNpRYjkzZjiTgEoQutyJwuedpp5lz8zJtVw3Umst1cDASTx5BRFbd1NSqKP4W s5y3fs7qRjWkQTXmgsiReh9bUZ0pGFfgLRYtulRAUC54Rm0efYFFhZxvfqStZv0zKh6 orEEAxm+j5go9ij8oq01oduWrESagRd+z9pHDOHE7ISVCq/4b9aeOb5GNmtr4osthxU IvSKicmsWGODW3L9dv5GkWjkYMWegyUm1CzNQXSoIMnP/enhSqpvJCPClJa8qswt2St lwkbYYd6hdkfPo23VcKsz/9nKRqImAbfWzcGTJLf90KJCbNEiVGSDiFQaAzUZxoA/tK iBUv+n5A== |
| DKIM-Signature | v=1; a=rsa-sha256; c=relaxed/relaxed; d=case.edu; s=smtp-primary; t=1595186470; bh=+QD1CfmEI1vbJZYl6IfTBkemvGyBskwQUPFNq1Ry/jE=; h=Reply-To:Cc:Subject:To:References:From:Message-ID:Date: MIME-Version:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=3UqzuIEO1pehOFfeGJCiayfOcvHSSJe0UcFutK5OLCgX1UVDDCi+XkSrU7TvkXj8bQ +Ui99azR3UwU+sSpqP3ubzF8XcQ0bFLxkidDZP6DIA+zSJTAo2xPuX0M3z+zI2+/lYb kaMor8VpbSdpqcfZG8iP1e3J4heJwy+YxH3O8CTkeU8uC3FyWWuFLwL256RxMC5HoYy ZPq4xQgBgzkRFbBvkwQRWjCTo+WHbbbxQTMgrezjRT27VwV88k2siPM9F0OR/vsBmyh IHu7TpW8qCH2J845KrS61Ko9MMPaCZGDHcXYISDE8oMEqxYknRHT7jWwa3XSgYapAJd zCet10Dw== |
| DKIM-Signature | v=1; a=rsa-sha256; c=relaxed/relaxed; d=case.edu; s=g-case; h=reply-to:cc:subject:to:references:from:autocrypt:organization :message-id:date:user-agent:mime-version:in-reply-to :content-language:content-transfer-encoding; bh=+QD1CfmEI1vbJZYl6IfTBkemvGyBskwQUPFNq1Ry/jE=; b=F17376pHMMZjYWv7sH7Jjl6bTVwxSgFHHTxJrOp1MViBdga6CcyPRdMG0yFLM7Wr9P Jd5UTdFdtDdCTJI+C/68QlkpoYtX4opHMLfXZwxuKnc9n1Kl7ZTQKCJ7YKlLbz2I3TMN cG6fsQ2L6BLhc/cTdJNs+iUJUKKs4/HTMPfaJSEXr/ewWJzwL4671ZtxovP0dTydV9MA XYAtH91geahJSK7BmJGlh0KDZN6O2IO/mVa/DRi6ibvhFQW/Sleqv5adTI2PtcnBFSxX 74HVRlwMQl6eRCLTS0Edhg5LVBkgo1y4ZGzTWhK0UXQUQKS2NXXMyD6BhGjiJuqsb0Gh B/2w== |
| X-Google-DKIM-Signature | v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:reply-to:cc:subject:to:references:from:autocrypt :organization:message-id:date:user-agent:mime-version:in-reply-to :content-language:content-transfer-encoding; bh=+QD1CfmEI1vbJZYl6IfTBkemvGyBskwQUPFNq1Ry/jE=; b=cQDTNQTW1c/EQIkgoJ9mconML602L7mU1UpgvtQm34WP9VWcnlSPJ999ZeRjXBAH2V hDBFVNGb2nx1iIWKGWjiNpx7s1MFCBzHtNgPvmYXiOcvZCTw13DAhZhOF6hox4fudUC0 bkndLIucnS6/y4A9qAgl816AHPgukavTAwnzNLaLZms89zUdjzer3Sm6exnltcvFt9D/ Sn0eIkRYas/PcrxvDfqkFE6MDvfixwTBRCYGxzdt/z1sR/8zEll6Bx/P0EwMW6Uz/B6R EV0WjZLCCquI3eshin4ZVVZSfj5gluHB2FoQZKpmDZOIZf/pJbCesKfplXJwg9McjcGK Ik2g== |
| X-Gm-Message-State | AOAM531Hfgezsj1WWskYF4TXyXEpL56B3QYXVrHampSGWwwAd6CzF/Ry pdoBNKuFlCTWZUCF6hjed2UjeTmH8eXZnD55mfOkrY1u+SRl2UxofkFV/KVUyNIwd1PpMY7a7aB L4/C6loHRRqQ= |
| X-Received | by 2002:a05:6214:18f2:: with SMTP id ep18mr17847579qvb.96.1595186469865; Sun, 19 Jul 2020 12:21:09 -0700 (PDT) |
| X-Google-Smtp-Source | ABdhPJwstj0MwAoOdcCuImn456Ec1/I8faZLZS5WQnBEEPEhYagmKv5z7dvtxRmLFDysthSytdaJ3g== |
| X-Received | by 2002:a05:6214:18f2:: with SMTP id ep18mr17847564qvb.96.1595186469596; Sun, 19 Jul 2020 12:21:09 -0700 (PDT) |
| Autocrypt | addr=chet.ramey@case.edu; prefer-encrypt=mutual; keydata= mQGiBEEOsGwRBACFa0A1oa71HSZLWxAx0svXzhOZNQZOzqHmSuGOG92jIpQpr8DpvgRh40Yp AwdcXb8QG1J5yGAKeevNE1zCFaA725vGSdHUyypHouV0xoWwukYO6qlyyX+2BZU+okBUqoWQ koWxiYaCSfzB2Ln7pmdys1fJhcgBKf3VjWCjd2XJTwCgoFJOwyBFJdugjfwjSoRSwDOIMf0D /iQKqlWhIO1LGpMrGX0il0/x4zj0NAcSwAk7LaPZbN4UPjn5pqGEHBlf1+xDDQCkAoZ/VqES GZragl4VqJfxBr29Ag0UDvNbUbXoxQsARdero1M8GiAIRc50hj7HXFoERwenbNDJL86GPLAQ OTGOCa4W2o29nFfFjQrsrrYHzVtyA/9oyKvTeEMJ7NA3VJdWcmn7gOu0FxEmSNhSoV1T4vP2 1Wf7f5niCCRKQLNyUy0wEApQi4tSysdz+AbgAc0b/bHYVzIf2uO2lIEZQNNt+3g2bmXgloWm W5fsm/di50Gm1l1Na63d3RZ00SeFQos6WEwLUHEB0yp6KXluXLLIZitEJLQwQ2hldCBSYW1l eSAoQ2FzZSBzdGFuZGFyZCkgPGNoZXQucmFtZXlAY2FzZS5lZHU+iF8EExECAB8FAkPi19EC GwMHCwkIBwMCAQMVAgMDFgIBAh4BAheAAAoJELtYafBk6nSrelkAn31Gsuib7GcCZHbv5L5t VKYR9LklAJ4hzUHKA49Z0QXR+qCb80osIcmPSbkBDQRBDrBvEAQAkK6TAOKBEM+EC4j6V/7o /riVZqcgU5cid2qG9TXdwNtD9a3kvA/ObZBO93sX59wc6Bnwo4VJxsOmMlpGrAjJsxNwg3QH akEtf8LXRbVpj5xStdmBdQZUhIQyalo/2/TZq5OijtddUQcL5cs70hTv/FpT3wUvr2Xr8rjF 41IFEz8AAwcD/A0CZEGlzIrT5WCBnl6xBog/8vKiUCbarByat3d1mL6DbizvKNXQRTC9E/vE dENAWCQCjr75Bu55xT8n3SXGtWdDC5xmZ/P3OBYORP8yl8H8I1FIosWOFirbIeYdZPq8SPD1 HL+EXo9zSiHVrrZRJ19ooCKKbSdXHFCY+aJG+0KZiEkEGBECAAkFAkEOsG8CGwwACgkQu1hp 8GTqdKvjcACfZlkVCDwaz/NTO9cy3t69oWpVPNwAnRwe0qk/WL/gfhH346xh5B3HFbFN |
| User-Agent | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 |
| In-Reply-To | <CAH7i3LpXfj3p5tXS_4S_dxdvdLG_tNyBa-4bU=z0Xih1=Tr7OA@mail.gmail.com> |
| Content-Language | en-US |
| X-Mirapoint-IP-Reputation | reputation=Good-1, source=Queried, refid=tid=0001.0A020302.5F1495F3.0040, actions=tag |
| X-Mirapoint-IP-Reputation | reputation=good-1, source=Fixed, refid=n/a, actions=tag |
| X-Junkmail-Status | score=8/80, host=mpv1-2015.case.edu |
| X-Junkmail-PrAS-Raw | score=8/80, refid=2.7.2:2020.7.19.184217:17:8.317, ip=, rules=__YOUTUBE_RCVD, DKIM_SIGNATURE, __X_GOOGLE_DKIM_SIGNATURE, __HAS_REPLYTO, __HAS_CC_HDR, __MULTIPLE_RCPTS_CC_X2, __CC_NAME, __SUBJ_REPLY, __BOUNCE_CHALLENGE_SUBJ, __BOUNCE_NDR_SUBJ_EXEMPT, __SUBJ_ALPHA_END, __TO_MALFORMED_2, __TO_NAME, __TO_NAME_DIFF_FROM_ACC, __HAS_REFERENCES, __REFERENCES, __HAS_FROM, FROM_EDU_TLD, __HAS_MSGID, __SANE_MSGID, DATE_TZ_NA, __USER_AGENT, __MOZILLA_USER_AGENT, __MIME_VERSION, __IN_REP_TO, __CT, __CT_TEXT_PLAIN, __CTE, __REPLYTO_SAMEAS_FROM_ADDY, __REPLYTO_SAMEAS_FROM_ACC, __FROM_DOMAIN_IN_ANY_CC2, __REPLYTO_SAMEAS_FROM_DOMAIN, __DKIM_ALIGNS_1, __DKIM_ALIGNS_2, __ANY_URI, __URI_MAILTO, __URI_WITH_PATH, __URI_ENDS_IN_SLASH, __URI_NO_WWW, __CP_URI_IN_BODY, __FRAUD_MONEY_CURRENCY_DOLLAR, __SUBJ_ALPHA_NEGATE, __URI_IN_BODY, __URI_NOT_IMG, __MAIL_CHAIN, __FORWARDED_MSG, __BODY_NO_MAILTO, __NO_HTML_TAG_RAW, [TRUNCATED], so=2010-03-03 19:42:08, dmn=2016-08-03-0138 |
| Received-SPF | pass client-ip=129.22.103.226; envelope-from=chet.ramey@case.edu; helo=mpv1-2015.case.edu |
| X-detected-operating-system | by eggs.gnu.org: First seen = 2020/07/19 15:21:11 |
| X-ACL-Warn | Detected OS = Linux 2.4.x-2.6.x [generic] |
| X-Spam_score_int | -43 |
| X-Spam_score | -4.4 |
| X-Spam_bar | ---- |
| X-Spam_report | (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=ham autolearn_force=no |
| X-Spam_action | no action |
| X-BeenThere | bug-bash@gnu.org |
| X-Mailman-Version | 2.1.23 |
| Precedence | list |
| List-Id | Bug reports for the GNU Bourne Again SHell <bug-bash.gnu.org> |
| List-Unsubscribe | <https://lists.gnu.org/mailman/options/bug-bash>, <mailto:bug-bash-request@gnu.org?subject=unsubscribe> |
| List-Archive | <https://lists.gnu.org/archive/html/bug-bash> |
| List-Post | <mailto:bug-bash@gnu.org> |
| List-Help | <mailto:bug-bash-request@gnu.org?subject=help> |
| List-Subscribe | <https://lists.gnu.org/mailman/listinfo/bug-bash>, <mailto:bug-bash-request@gnu.org?subject=subscribe> |
| X-Mailman-Original-Message-ID | <5f066ef0-1fed-ad5b-d564-490268d32427@case.edu> |
| X-Mailman-Original-References | <CAH7i3LqG=mnoiSbetxVdg3wqso5orGgMqQk70-UfJ=wcdf6uLQ@mail.gmail.com> <8ddc4816-f85e-97b3-5c51-9b55acdcaca5@case.edu> <CAH7i3LpXfj3p5tXS_4S_dxdvdLG_tNyBa-4bU=z0Xih1=Tr7OA@mail.gmail.com> |
| Xref | csiph.com gnu.bash.bug:16582 |
Show key headers only | View raw
On 7/19/20 1:47 AM, Oğuz wrote:
> By the way,
> wouldn't it be better if the same tilde expansion rules as with assignment
> statements was applied to parameter expansions that assign default values?
> Like,
>
> unset foo
> echo ${foo=~:~otheruser}
>
> assigns `/home/oguz:~otheruser' to `foo' regardless of whether `otheruser'
> is a valid login name for an existing user.
Maybe, but Posix says this isn't a variable assignment context, as POSIX
defines variable assignments, and technically the shell shouldn't perform
tilde expansions after `=' or `:' at all. You could argue that bash has a
bug here in that it expands the tilde after the `='.
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU chet@case.edu http://tiswww.cwru.edu/~chet/
Back to gnu.bash.bug | Previous | Next | Find similar
Re: Assignment-like word shouldn't be subjected to tilde expansion in POSIX mode Chet Ramey <chet.ramey@case.edu> - 2020-07-19 15:21 -0400
csiph-web