From mboxrd@z Thu Jan 1 00:00:00 1970 From: AD Marshall Subject: Re: how-to: one command for repeat OR iterate shell OR bash command delay OR interval Date: Sun, 17 Jul 2005 13:07:46 +0700 Message-ID: <200507171307.46798.admarshall@gmail.com> References: <200507171157.35066.admarshall@gmail.com> <20050717063508.302cbafe.bilbo@waitrose.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20050717063508.302cbafe.bilbo@waitrose.com> Content-Disposition: inline Sender: linux-newbie-owner@vger.kernel.org List-Id: Content-Type: text/plain; charset="us-ascii" To: John Kelly Cc: linux-newbie@vger.kernel.org On Sunday 17 July 2005 12:35, John Kelly wrote: > Hi, > On Sun, 17 Jul 2005 11:57:34 +0700 > AD Marshall wrote: > > > Is there already one bash command to do what the following script > > does (poorly or incompletely), ie repeat "command" indefinitely > > every "x" seconds: > > > > #!/bin/sh > > # usage: repeat [x] > > while true ; do $2 ; sleep $1 ; done > > > > < rest deleted > > > The watch command might tbe what you want. > Or maybe not, if you don't want anything output to screen. > > Try man watch for details. > Ya. Thanks. I'd (long) forgotten about "watch". but, actually, i should be more specific. what i'm trying to do is something like this -- though i'm screwing up on quoting or something am@[~]$ repeat 2 "echo $(cat /proc/loadavg ; date +%H:%m:%S)" 0.05 0.14 0.24 6/127 27711 12:07:29 0.05 0.14 0.24 6/127 27711 12:07:29 0.05 0.14 0.24 6/127 27711 12:07:29 as you can see, only one instance of load average and time are repeated. i want a running record that can be redirected to a file i just tinkered with backslashes, back-quotes, double-quotes and single-quotes, but all the quoting stuff still confuses me. and, imho, i would have thought someone would have written a simple tool to do this ages ago. no? thanx again, andi -- AD Marshall Tel: +84 (0)903871313 eM: admarshall@gmail.com Web: http://h0lug.sourceforge.net Zone: ICT (IndoChina Time; GMT/UTC+7) - To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs