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Sun, 05 Sep 2021 04:20:23 -0700 (PDT) Received: from mbook.local ([2402:6b00:7e7a:6200:e102:10ed:9876:c8d6]) by smtp.gmail.com with ESMTPSA id q12sm4439911pfj.153.2021.09.05.04.20.22 for <9fans@9fans.net> (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 05 Sep 2021 04:20:23 -0700 (PDT) From: =?UTF-8?B?5pyJ5r6kIOWBpeayuw==?= To: 9fans@9fans.net References: Message-ID: <6bf6c326-fd40-ccce-e915-04046e4e0e79@gmail.com> Date: Sun, 5 Sep 2021 20:20:20 +0900 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:78.0) Gecko/20100101 Thunderbird/78.12.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset="UTF-8"; format="flowed" Content-Transfer-Encoding: quoted-printable Content-Language: en-US Topicbox-Policy-Reasoning: allow: sender is a member Topicbox-Message-UUID: 470ffd6a-0e3b-11ec-a75c-d0d8e8007a18 Archived-At: =?UTF-8?B?PGh0dHBzOi8vOWZhbnMudG9waWNib3guY29tL2dyb3Vwcy85?= =?UTF-8?B?ZmFucy9UYTUwODFhZTE0ZWFiNjc0Ni1NN2IwNGI3Nzk0ODg5NDU2OTE5MWVj?= =?UTF-8?B?MzljPg==?= List-Help: List-Id: "9fans" <9fans.9fans.net> List-Post: List-Software: Topicbox v0 List-Subscribe: Precedence: list Reply-To: 9fans <9fans@9fans.net> Subject: [9fans] Re: cron job List-Unsubscribe: , Topicbox-Delivery-ID: 2:9fans:437d30aa-c441-11e9-8a57-d036212d11b0:522be890-2105-11eb-b15e-8d699134e1fa:M7b04b77948894569191ec39c:1:5fmDB07EyEb4fQJSvZOVkiPd4XoAoJ_BT0GlDugH3dw Sorry the following mail should be sent to 9front mailing list. On 2021/09/05 16:52, =E6=9C=89=E6=BE=A4 =E5=81=A5=E6=B2=BB wrote: > Hello all, > > I noticed what I donn't understand. > > Let alice be a user of a system hebe, > and try an experiment on cron job. > > STEP 1. > make /usr/alice/tmp/T that looks like: > hebe# ls -dl /usr/alice/tmp/T > d-rwxrwxrwx M 24 alice alice 0 Sep=C2=A0 3 01:00 /usr/alice/tmp/T > hebe# > > STEP 2. > make a rc script /usr/alice/bin/rc/touchtest: > #!/bin/rc > rfork e > d=3D/usr/alice/tmp/T > t=3D`{date -n} > touch $d/$t > > STEP 3. > make a cron job for alice on /cron/alice/cron such that: > 0,10,20,30,40,50 * * * * local /usr/alice/bin/rc/touchtest > > STEP 4. > observe files in /usr/alice/tmp/T > and you can confirm, owner of created files is hostowner, not alice. > my case: > hebe% cd /usr/alice/tmp > hebe% ls -l T > --rw-rw-rw- M 195329 arisawa alice 0 Sep=C2=A0 3 00:40 T/1630597201 > --rw-rw-rw- M 195329 arisawa alice 0 Sep=C2=A0 3 00:50 T/1630597801 > --rw-rw-rw- M 195329 arisawa alice 0 Sep=C2=A0 3 01:00 T/1630598401 > hebe% > > where "arisawa" is the hostowner of "hebe". > Is this reasonable ? > > additional info: > hebe# ps | grep cron > arisawa=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 366=C2=A0=C2=A0= =C2=A0 0:00=C2=A0=C2=A0 0:00=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 128K Sleep=C2=A0= =C2=A0=C2=A0 cron > hebe# > > Kenji Arisawa > ------------------------------------------ 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/Ta5081ae14eab6746-M7b04b= 77948894569191ec39c Delivery options: https://9fans.topicbox.com/groups/9fans/subscription