LHS Show Notes #032

Texas Linux Fest promo


  • Shawn Powers of Linux Journal, and a recent guest on LHS, had a house fire. If you can, please help him out.
  • Google alert says LHS was mentioned in the Niagara Peninsula Amateur Radio Club (NPARC) forums, but it seems to have disappeared.
  • There's been a problem with Russ' email, k5tux@blacksparrowmedia.com, so please also copy Richard, kb5jbv@blacksparrowmedia.com, on any email until the problem is resolved.
  • Michael, DL4MGM, advises WSPR users to make sure their transmitters are on frequency, so as to avoid encroaching on the visual QRSS, particularly on 30m. He also suggests using "sudo su" to get a root shell session.
  • Ted, WA0EIR, writes to express his appreciation for Episode 029, and the plug for his website.
  • Google Alert tells us that a French website, al-aide.com, reprinted the post about Episode 029.


  • Texas Linux Fest will be held in Austin, TX on April 10, 2010, at the Monarch Event Center. You might even find a Linux in the Ham Shack host there! Tracy, one of the organizers of the event, is also starting another Linux-related podcast. Keep an eye on his website for the first episode.
  • We're nearing our goal of raising $750 for the LHS expedition to the Dayton Hamvention in 2010. Please click on the Donate button and make a donation, as every little bit helps. Thank you!

Links and Notes:

  • There has been a lot of ham radio involvement in the relief efforts in Haiti, through such groups as the Texas Baptist Men and SATERN. Russ points us to this YouTube video containing a contact with HH2JR, demonstrating the effectiveness of ham radio in emergency communications.
  • Richard talks about using Linux scripts to automate D-RATS transmissions (auto-QSTs). This script downloads weather information and formats it for sending through D-RATS.
    	# Change directory
    	cd /home/richard/drats/current_conditions
    	# Remove the old downloaded weather file
    	rm KHQZ.TXT
    	# Download the current weather file from NOAA
    	wget -q ftp://tgftp.nws.noaa.gov/data/observations/metar/decoded/KHQZ.TXT
    	# Remove the old formatted file
    	rm current.txt
    	# Strip last line of text of the NOAA file, using sed
    	# This sed command strips out everything between "Mesquite" and "Pressure"
    	sed '/Mesquite,/,/Pressure / !d' KHQZ.TXT > khqz1.txt
    	# Add a blank line to the new file
    	echo -e " " >> current.txt
    	# Copy Mesquite Weather conditions to new file
    	cat khqz1.txt >> current.txt
    	# Done!
    	# A cron job then periodically sends out the contents of current.txt
  • For more information on using the BASH shell and scripting, see:
  • Russ discusses the Linux "screen" command.
  • Visit us on the IRC channel #lhspodcast at irc.freenode.net or call the voice message line at 888-455-0305, or +1 417 429 4069.