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| Author | Subject: Re: Command refresh |
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 Posted on 12-26-2001 01:28 a.m. ET  Original Poster: "Mark W. Krentel" <krentel@dreamscape.com> > Its been awhile since I have been using linux, and I am just getting back > into it, so I have forgoten alot of basic commands. The command that > I am trying to remember does this: > > <command> <refresh rate> <opt. command(finger @localhost, ps -ef etc.)> > > The command just basically refreshes the opt. command at set intervals. Perhaps what you mean is cron. Cron doesn't really refresh a command, it runs it at regular intervals: hourly, daily, weekly, etc. Look at /etc/crontab and read "man 5 crontab". (Unfortunately, there doesn't appear to be a Howto for cron.) But if you want something to run from the shell, then there isn't a separate command for this. Generally, a command would refresh itself if it made sense to do so, but that's on a command by command basis. For example, "top -d", "ping -i", "netstat -c", etc. You can continually rerun a command from bash with: while true ; do <command> ; sleep <seconds> ; done Then use ^C to quit. But, like cron, this doesn't "refresh" the command. It reruns it from scratch every so many seconds, which may or may not make sense depending on the command. --Mark |
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