Path: csiph.com!goblin2!goblin1!goblin.stu.neva.ru!usenet.stanford.edu!not-for-mail From: Chet Ramey Newsgroups: gnu.bash.bug Subject: Re: Should $(fg) resume a stopped job? Date: Mon, 3 Aug 2020 15:41:09 -0400 Organization: ITS, Case Western Reserve University Lines: 25 Approved: bug-bash@gnu.org Message-ID: References: <08840792-f5f6-34b1-ca5a-81e5488eba36@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 1596483701 32679 209.51.188.17 (3 Aug 2020 19:41:41 GMT) X-Complaints-To: action@cs.stanford.edu Cc: chet.ramey@case.edu, bug-bash To: =?UTF-8?B?T8SfdXo=?= Envelope-to: bug-bash@gnu.org DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=case.edu; s=smtp-primary; t=1596483695; bh=uP9jV/vW3+KqQtNgjJyPPhXunUhQiF/yA5T99TR5/cQ=; h=Reply-To:Cc:Subject:To:References:From:Message-ID:Date: MIME-Version:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=rVKyWvrrlWWZ0JRDn22A8axQJ3HTqkYzfQQ+pc+ucJ32eqKaTHDyjqglXJIgzCAa8d kxrihec2UmzJS7dM7VKdi2fM8G0cKMTatiApK25tocNMp769DGsitMSHPpJ6WjKRT9c 0LIl9OwFL7EzEUvtmSINJjy7PxlOoPZEVroNcC1ctPj/+GpCYW1fgjlcMGV7PeXvYn7 7Khml6mZyrN8hssW4GVAFHiGsjkurJrbHJWrnwuNtQrOr3RZZLP3PvH1ME6JbUwDJep JTwIcRakt438rNgN4n7amtfHVH3mDw0PumtXWmmYg4ccTjvz1E+156jpnBoQmNNnAfF Zjr3Lh1A== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=case.edu; s=smtp-primary; t=1596483694; bh=lOMxp8g987WkW1+EWo46fd2KkmJUv6mTS7x99Idb2cA=; h=Reply-To:Cc:Subject:To:References:From:Message-ID:Date: MIME-Version:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=5lgVOm/WPy1S5KFIXnYZD7AzkyS8SiAksiCcEHf6m6spge5i7DlFsZHUOD/wvnsECv +m5++ArHhXfjgWtNj+Xa538nmhq0h62cGZpZGFmzNZZabGbYlfokWAeyjhf73NGNp0h DaaX0p1UUWpgNDGUs+i+r1T3E52z08dcpy+kTuy8yj4LuxlMBLCAnjWBKR87rg/zQ9+ 9mlfDuHbf+f3d7kCklipTaLMzJK+aoJjWNsAemyJMTOK2/rAhYUqr7tfPDs202aSLAb 0TWQYeBkjb68ggG2bj3NBhTWL5Vd2v1CZwrsroQUruASz6bc9wHOCXYMAFpQn94KHmR UQ3W+Skg== 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=lOMxp8g987WkW1+EWo46fd2KkmJUv6mTS7x99Idb2cA=; b=ExZuKu4+O1nZjxFiZPBVb5pcUGpvEZGkC17oQTsnDuelzv29KexnYrkUBhyur64hU+ rtYJrNqlsIZzcAEcEEgFTj2OvN6ulASWfbPo4HixHDnjBgdwu0r4fqwqYWqbZQPj/wP1 II0fKpAcrXfKW7fKurhTAEnCujVYC2mzNxlFjTBQhjBnmMZTcoNwykpVCdFHs6GXN6PG /OaW7YBfvmVcnb7NwEMKFsUZI3GhWo5LSVIWbaOMiSSh5QSZAYf6qVQsOadQ84SKN4FX olup8DimeYRrQjHYQPdoxBj+/8b9wyIvTVpPIoYWDAQ6QC+OHg0CuhO1IN5WmZ9pzKxN 8wZQ== 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=lOMxp8g987WkW1+EWo46fd2KkmJUv6mTS7x99Idb2cA=; b=kbyau4B9UMdkbbR1576IYZCMT1o3MbIFybcmIEZYgC5N5rPU2uD2bZFGc1dc2REHSh kPsbWQ2Je8eScJTjHn68Q+8AFgeuBii9COypvBynxR8+C+O44qNGa7xMZB5GQNy4iqxq P+2ZmSK+hncDgYjuLrzv3MBU8TJ92kCaYrb8mZ77/+FpQZ6cjVhOEhEBMTHpDJZm3Fun iOCfK7q30gyVcwTylU3XEXz5kE/TYYF1WSELe4Hzhogd1qY8Z4aaSsncRVrd2+RUp1rq UIjwE8Su0QN9tYDDRZz0TOQLevOAzYHEGwgCMZvC6TXDc1SCBf5i3J/0ihrDJklaQZMr CkQA== X-Gm-Message-State: AOAM531LAjoRP8lGAv0q+0c4GPMAlVb7IqWIG7iNJ8QQqrNfsV7dk3gJ u2OPb3pt8jBkAqXug0GBFkcoaCIlDkOL8Diy938ZZtk//B1tL9iK2Qdd+pWGGpxsQPiKWFbUmWM OvVZHexH7QaU= X-Received: by 2002:a05:620a:2230:: with SMTP id n16mr18388869qkh.268.1596483693208; Mon, 03 Aug 2020 12:41:33 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxLgUd1k5ggi3sqn3fLCrKm7k+neRqsQuFJ9JdyQOsbrkhjVoKTN1jOgxsdiqojTnGpM1RSaw== X-Received: by 2002:a05:620a:2230:: with SMTP id n16mr18388847qkh.268.1596483692847; Mon, 03 Aug 2020 12:41:32 -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 10.15; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 In-Reply-To: Content-Language: en-US X-Mirapoint-IP-Reputation: reputation=Good-1, source=Queried, refid=tid=0001.0A020301.5F2865A8.011E, actions=tag X-Mirapoint-IP-Reputation: reputation=good-1, source=Fixed, refid=n/a, actions=tag X-Junkmail-Status: score=8/80, host=mpv2-2015.case.edu X-Junkmail-PrAS-Raw: score=8/80, refid=2.7.2:2020.8.3.190916:17:8.317, ip=, rules=__YOUTUBE_RCVD, DKIM_SIGNATURE, __X_GOOGLE_DKIM_SIGNATURE, __HAS_REPLYTO, __HAS_CC_HDR, __MULTIPLE_RCPTS_CC_X2, __CC_NAME, __CC_NAME_DIFF_FROM_ACC, __SUBJ_REPLY, __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_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=129.22.103.227; envelope-from=chet.ramey@case.edu; helo=mpv1-2015.case.edu X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/03 15:41:34 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Mailman-Original-Message-ID: X-Mailman-Original-References: <08840792-f5f6-34b1-ca5a-81e5488eba36@case.edu> Xref: csiph.com gnu.bash.bug:16688 On 7/31/20 12:43 PM, Oğuz wrote: > Maybe a minor bug, but certainly a choice. The command substitution keeps > the jobs list around, since the subshell is supposed to be an exact copy of > the parent, and it's useful to get the output of `jobs' out of command > substitution. > > You just can't expect to do anything with any of those jobs, since the > command substitution shell is not the parent of any of them. It would > make sense to have `fg' complain about that. > > > Right, it would. bosh behaves the same way as bash btw. Behavior is mixed. I put in something that should produce an error when you try to use `fg' or `bg' in a command substitution without having done anything to enable job control first. Chet -- ``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/