Path: csiph.com!xmission!news.snarked.org!news.linkpendium.com!news.linkpendium.com!panix!usenet.stanford.edu!not-for-mail From: Chet Ramey Newsgroups: gnu.bash.bug Subject: Re: Command grouping Date: Sat, 12 Oct 2019 10:42:25 -0400 Organization: ITS, Case Western Reserve University Lines: 21 Approved: bug-bash@gnu.org Message-ID: References: <06070f12-033d-0736-1733-a035629104cd@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: 7bit X-Trace: usenet.stanford.edu 1570891355 29449 209.51.188.17 (12 Oct 2019 14:42:35 GMT) X-Complaints-To: action@cs.stanford.edu Cc: chet.ramey@case.edu To: Mischa Baars , 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=1570891350; bh=YpSPAle/TWQt9oIh1Sok5KHvrErkv02irax06NgsLtc=; h=Reply-To:Cc:Subject:To:References:From:Message-ID:Date: MIME-Version:In-Reply-To:Content-Type:Content-Transfer-Encoding; 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Intel Mac OS X 10.14; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 In-Reply-To: Content-Language: en-US X-Junkmail-Status: score=8/90, host=mpv1-2015.case.edu X-Junkmail-PrAS-Raw: score=8/90, refid=2.7.2:2019.10.12.134817:17:8.317, ip=, rules=__YOUTUBE_RCVD, DKIM_SIGNATURE, __X_GOOGLE_DKIM_SIGNATURE, __HAS_REPLYTO, __HAS_CC_HDR, __SUBJ_REPLY, LEO_OBFU_SUBJ_RE, __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_CC1, __FROM_DOMAIN_IN_ANY_CC2, __REPLYTO_SAMEAS_FROM_DOMAIN, __DKIM_ALIGNS_1, __DKIM_ALIGNS_2, __ANY_URI, __URI_WITH_PATH, __URI_NO_WWW, __CP_URI_IN_BODY, __FRAUD_MONEY_CURRENCY_DOLLAR, __SUBJ_ALPHA_NEGATE, __URI_IN_BODY, __URI_NOT_IMG, __FORWARDED_MSG, __BODY_NO_MAILTO, __NO_HTML_TAG_RAW, BODY_SIZE_700_799, BODYTEXTP_SIZE_3000_LESS, __MIME_TEXT_P1, [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: 129.22.103.226 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: <06070f12-033d-0736-1733-a035629104cd@case.edu> X-Mailman-Original-References: Xref: csiph.com gnu.bash.bug:15503 On 10/12/19 9:02 AM, Mischa Baars wrote: > Hi, > > Perhaps to better have a look at this mail, than the previous mail. > > In trying to group commands, in this case compiler commands, I found some peculiarities while trying different combinations of the 'Internal Field Separator' > and the 'Parameter Expansion' operator ${parameter@P}. I haven't looked at this in any depth, but you should realize that running declare IFS=$(printf ' \t\n') will result in IFS being set to space and tab, since command substitution removes the trailing newline. Maybe that will make a difference. -- ``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/