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Intel Mac OS X 10.14; rv:68.0) Gecko/20100101 Thunderbird/68.4.2 MIME-Version: 1.0 In-Reply-To: <202002110940.01B9eeHS004641@freefriends.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Junkmail-Status: score=7/80, host=mpv4-2015.case.edu X-Junkmail-PrAS-Raw: score=7/80, refid=2.7.2:2020.2.11.143317:17:7.944, ip=, rules=DKIM_SIGNATURE, __HAS_REPLYTO, __HAS_CC_HDR, __SUBJ_REPLY, __BOUNCE_CHALLENGE_SUBJ, __BOUNCE_NDR_SUBJ_EXEMPT, __TO_MALFORMED_2, __TO_NO_NAME, __MULTIPLE_RCPTS_TO_X2, __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_ENDS_IN_SLASH, __URI_NO_WWW, __FRAUD_INTRO, __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, BODYTEXTP_SIZE_3000_LESS, BODY_SIZE_1000_1099, __MIME_TEXT_P1, [TRUNCATED], so=2010-03-03 19:42:08, dmn=2016-08-03-0138 Subject: Re: [TUHS] V9 shell [was Re: Warner's Early Unix Presentation] X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: chet.ramey@case.edu Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" On 2/11/20 4:40 AM, arnold@skeeve.com wrote: > Doug McIlroy wrote: > >>> What i like is the autocorrect feature in v8: >>> >>> $ cd /usr/blot >>> /usr/blit >>> $ pwd >>> /usr/blit >> >> Here I am, editor of the v8 manual and unaware of the feature. >> We now know that silent correction is a terrible idea. > > But this isn't *silent* correction. The shell tells you where > it's putting you when it does this, same as in a 'cd' that > happens via $CDPATH. > > Admittedly, you have to be paying attention, but Unix has always > demanded that of its users. The one change I might consider is to disable this feature if the shell is executing a command list, so something like cd /usr/bon && rm -f sh* doesn't do something unexpected before a user has a chance to react. Does the v9 shell do that? 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/