Sunday, February 25. 2007xplanet-update-cloudmap.sh: Download script for Xplanet
For ages I'm using Xplanet as an animated background on my desktop, displaying a nice view of the earth.
Xplanet has a nice feature: You can download a (nearly) up to date map of the clouds and use it with Xplanet (see this screenshot). Two download scripts are listed here, but I wasn't too happy with them (although I did use the one written in Python for a long time). What nagged me about them was their irritating behaviour to download even the "file not found" page if there was no cloudmap available. So I wrote my own download script which checks if it has really downloaded a cloudmap before replacing the one in use. That means that you may end up with an old one, but you have always nice clouds for xplanet. View | Download Sunday, February 25. 2007Wednesday, January 3. 2007sm_watch: Monitoring of system log files
This is my favorite hack, in daily use here on my box. I copied the following passage from the script:
Shell program to display changes to "/var/log/messages", "/var/log/mail" and the "From:" and "Subject" lines of new mail to root and his normal user account via "root-tail" windowless on root window of your desktop and/or in a terminal via "tail" colorized with "ccze". You will need root-tail and ccze for the script to work. Here is a screenshot from the terminal window:  The next one shows what root-tail is doing. The text is displayed in the lower right corner.  The following is an enlarged view of the text.  This link shows what sm_watch and xsnow are doing together. View | Download Wednesday, January 3. 2007Backups for withouthat.org
Over here at withouthat.org, we have access to a ftp server for storing data. I wrote a simple bash script for doing backups of our webpages. I copied the following out of the script:
Shell program to backup specified directories as gzip'ed tar archives on certain days on a ftp server, keeping a number of older archives of the directories there (max is 10) and removing superfluous ones. Additionally, the list of packages on a Debian system is archived. View | Download Wednesday, January 3. 2007bash_skeleton.sh: My template for writing bash scripts
Among the scripts at LinuxCommand.org I found the "new_script" script which can be called to create a new script skeleton/template interactively. After using it for a while, I wrote my own skeleton, based on the output of new_script.
I like it and all my newer scripts are based on it. It has one nifty feature: If you do your editing with Emacs, it supports the "outline-minor-mode" which creates a menu for jumping to functions defined in your script. I created the following screenshot:  View | Download |
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