Path: csiph.com!weretis.net!feeder6.news.weretis.net!news.linkpendium.com!news.linkpendium.com!panix!usenet.stanford.edu!not-for-mail From: Chet Ramey Newsgroups: gnu.bash.bug Subject: Re: Issues with history substitution and its documentation Date: Mon, 18 Nov 2019 10:51:42 -0500 Lines: 30 Approved: bug-bash@gnu.org Message-ID: References: Reply-To: chet.ramey@case.edu NNTP-Posting-Host: lists.gnu.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Trace: usenet.stanford.edu 1574092310 17403 209.51.188.17 (18 Nov 2019 15:51:50 GMT) X-Complaints-To: action@cs.stanford.edu Cc: chet.ramey@case.edu To: Jim Monte , bug-bash@gnu.org Envelope-to: bug-bash@gnu.org DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=case.edu; s=smtp-primary; t=1574092304; bh=BS+ALgXIjxOBhi048eMFNTmO1iKC06v5bNy8cDl7fw0=; h=Reply-To:Cc:Subject:To:References:From:Message-ID:Date: MIME-Version:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=elfBs3m6eNAR+L/76iRdltAhMgNyJHFGcPEOlUsYaqoMUhoPy3AKMV7mrlCNnn5K1C uNnznVsbZ5hqmuj5G+fsLbRHpCLC/0HE05mitpH2ZlUZ1NQ3tQoe2oCD6Zx/k4Cg/jE brxPfDgpQaED+0y+lxYgXyXLyQJvKKPBcq3X8mdRgPXuwe/9e2Sjb0klf6su2Tfmmli crFMCdQ7P8NL2XtXMaNPb/GgtqWkBB3atHt8WXYmU5irN868dx3opBUmLRO4+IaXQeW eJVmP0LpHGmjqShizHah/wd1lh/UaONnkI8a3IRqX91kySyaDyVWOWgS40/hDuHQkWE 42+MBRaw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=case.edu; s=smtp-primary; t=1574092303; bh=8HDwlfgso9hrJdU4WPj3zHJRLbh6HHomdlHYQrf01bc=; h=Reply-To:Cc:Subject:To:References:From:Message-ID:Date: MIME-Version:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=FKRoX2fCtjhHrsNtrFw4yERiYae6yHl96D/nrEK8M42RLvlKt2bjF9eOstCXFk1Cho /3cVq3U9wXru2/mnSUgz2G0SMXd0KvudV1NR5pSxLyqMz02Aliws031ztGFTcGV8H0q fOAe48KBLd1KUv4wG3jIr9kMn+izEgZ7W3NJXfCHf0B3HPPLVFAfj2ugo3oP65r50hM eprLlqC9XLIg37kybDI0VC3teGW2OfLGD5LU0s+ebw+BUjpAiH8kYalf6md5Hpaxe9n 0kxnMcNbnuqVQp8GmNl6Xo4NkM6fUJtGzX408A6C6D/r4fYk3flFA5SdS9WeJ0ola4v B9Qz9gpg== User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:68.0) Gecko/20100101 Thunderbird/68.2.2 In-Reply-To: Content-Language: en-US X-Junkmail-Status: score=7/90, host=mpv2-2015.case.edu X-Junkmail-PrAS-Raw: score=7/90, refid=2.7.2:2019.11.18.145116:17:7.944, ip=, rules=DKIM_SIGNATURE, __HAS_REPLYTO, __HAS_CC_HDR, __SUBJ_REPLY, __PHISH_SPEAR_SUBJ_ALERT, __BOUNCE_CHALLENGE_SUBJ, __BOUNCE_NDR_SUBJ_EXEMPT, __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_CC1, __FROM_DOMAIN_IN_ANY_CC2, __REPLYTO_SAMEAS_FROM_DOMAIN, __DKIM_ALIGNS_1, __DKIM_ALIGNS_2, __ANY_URI, __URI_MAILTO, __URI_WITH_PATH, __URI_NO_WWW, __CP_URI_IN_BODY, __SUBJ_ALPHA_NEGATE, __URI_IN_BODY, __URI_NOT_IMG, __FORWARDED_MSG, __BODY_NO_MAILTO, __NO_HTML_TAG_RAW, BODYTEXTP_SIZE_3000_LESS, BODY_SIZE_900_999, __MIME_TEXT_P1, __MIME_TEXT_ONLY, __URI_NS, HTML_00_01, HTML_00_10, DKIM_ALIGNS, [TRUNCATED], so=2010-03-03 19:42:08, dmn=2016-08-03-0138 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] [fuzzy] X-Received-From: 129.22.103.227 X-BeenThere: bug-bash@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Bug reports for the GNU Bourne Again SHell List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Mailman-Original-Message-ID: X-Mailman-Original-References: Xref: csiph.com gnu.bash.bug:15603 On 10/10/19 10:35 PM, Jim Monte wrote: > There is an inconsistency with the documentation and behavior of the ^ word > designator. According to documentation, it refers to the first argument but > does not require a ':' before it if it starts the word designator. However, > it does not act like the numerical word designator 1 at the end of a range. Thanks for the report. This is a bug. > > [root@localhost ~]# echo a b c > a b c > [root@localhost ~]# echo !!:1-1 > echo a > a > [root@localhost ~]# echo a b c > a b c > [root@localhost ~]# echo !!:^-^ > echo a b^ > a b^ > > Also it is not explicitly documented that :- is equivalent to :0- Thanks, I'll add a note to the documentation. -- ``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/