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Sun, 05 Sep 2021 00:52:46 -0700 (PDT) Received: from mbook.local ([2402:6b00:7e7a:6200:c1a4:6048:3337:7b4]) by smtp.gmail.com with ESMTPSA id e2sm4187054pfn.141.2021.09.05.00.52.44 for <9fans@9fans.net> (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 05 Sep 2021 00:52:45 -0700 (PDT) To: 9fans@9fans.net From: =?UTF-8?B?5pyJ5r6kIOWBpeayuw==?= Message-ID: Date: Sun, 5 Sep 2021 16:52:53 +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 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: 4558534a-0e1e-11ec-af15-c5bfb0581650 Archived-At: =?UTF-8?B?PGh0dHBzOi8vOWZhbnMudG9waWNib3guY29tL2dyb3Vwcy85?= =?UTF-8?B?ZmFucy9UYTUwODFhZTE0ZWFiNjc0Ni1NMzRmYmMzMDA0NWMyNmM1NDMyYTAz?= =?UTF-8?B?NmY2Pg==?= 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] cron job List-Unsubscribe: , Topicbox-Delivery-ID: 2:9fans:437d30aa-c441-11e9-8a57-d036212d11b0:522be890-2105-11eb-b15e-8d699134e1fa:M34fbc30045c26c5432a036f6:1:xQB6b3UALaNvqG5_xyXIgi7MfvQ7DV8SelS4iyhIK0o 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-M34fbc= 30045c26c5432a036f6 Delivery options: https://9fans.topicbox.com/groups/9fans/subscription