I need to write a bash script to lookup a DNS name, let's say domain.dyndns.org, then compare it to a value in a file, if different update the file, then execute another script to ssh into a router and update an acl.
The purpose of this is to overcome a dynamic ip issue. I would want to run the script every 2 min or so.
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How to remove superseded packages in windows w60 or w61 installation media (.wim) or online system to prevent unnecessary space.
w60 means Windows Vista or Windows Server 2008.
w61 means Windows 7 or Windows Server 2008 R2.
There are various …
There's an interesting discussion going on now in an Experts Exchange Group — Attachments with no extension (http://www.experts-exchange.com/discussions/210281/Attachments-with-no-extension.html). This reminded me of questions tha…
Learn how to find files with the shell using the find and locate commands.
Use locate to find a needle in a haystack.: With locate, check if the file still exists.: Use find to get the actual location of the file.:
Learn how to navigate the file tree with the shell.
Use pwd to print the current working directory: Use ls to list a directory's contents: Use cd to change to a new directory: Use wildcards instead of typing out long directory names: Use ../ to move…